diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index 0d2e85c..43c1089 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -11909,7 +11909,6 @@ const ExportModal = ({ open, onClose, exportSettings, setExportSettings, isExpor
     const boxRef = React.useRef(null);
     const deadRef = React.useRef(false);
     const screenRectRef = React.useRef(null);
-    const shownRef = React.useRef(false);
     const [dead, setDead] = React.useState(false);
     const post = (payload) => { try { fetch(url + '/input', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(payload) }).catch(() => {}); } catch (e) {} };
     React.useEffect(() => {
@@ -11936,10 +11935,10 @@ const ExportModal = ({ open, onClose, exportSettings, setExportSettings, isExpor
       let alive = true;
       const maybeShow = () => {
         const r = screenRectRef.current;
-        if (!shownRef.current && r && r.w >= 4 && r.h >= 4) {
-          shownRef.current = true;
-          // Show the native window anchored over the panel (bridge stays
-          // alive; hidden again by /hide on unmount).
+        if (r && r.w >= 4 && r.h >= 4) {
+          // Re-POST /show on every refresh (~500ms) so the native window
+          // re-anchors over the panel on scroll/drag/resize. Idempotent: the
+          // bridge skips SetWindowPos/resize when nothing moved.
           try { fetch(url + '/show', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ rect: r }) }).catch(() => {}); } catch (e) {}
         }
       };
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index 593f938..f156b36 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -742,14 +742,15 @@ return{hx:Math.max(0,Math.min((canvasRef.current?canvasRef.current.clientWidth:4
 // gửi pointer/key về bridge qua /input. Dùng chung MasteringModal + FXRackModal.
 // url = embed_url từ API fx-gui open (embed:true); onClose khi user đóng;
 // onDead khi bridge chết (ping fail) → parent trả graph + toast.
-const VstGuiEmbed=({url,onClose,onDead})=>{const imgRef=React.useRef(null);const boxRef=React.useRef(null);const deadRef=React.useRef(false);const screenRectRef=React.useRef(null);const shownRef=React.useRef(false);const[dead,setDead]=React.useState(false);const post=payload=>{try{fetch(url+'/input',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)}).catch(()=>{});}catch(e){}};React.useEffect(()=>{deadRef.current=false;setDead(false);const tick=setInterval(()=>{const img=imgRef.current;if(img)img.src=url+'/frame?t='+Date.now();},100);const ping=setInterval(()=>{fetch(url+'/ping').then(r=>{if(!r.ok)throw new Error('bad');}).catch(()=>{if(!deadRef.current){deadRef.current=true;setDead(true);onDead&&onDead();}});},2000);return()=>{clearInterval(tick);clearInterval(ping);// Panel closed -> hide the native window (bridge stays alive so
+const VstGuiEmbed=({url,onClose,onDead})=>{const imgRef=React.useRef(null);const boxRef=React.useRef(null);const deadRef=React.useRef(false);const screenRectRef=React.useRef(null);const[dead,setDead]=React.useState(false);const post=payload=>{try{fetch(url+'/input',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)}).catch(()=>{});}catch(e){}};React.useEffect(()=>{deadRef.current=false;setDead(false);const tick=setInterval(()=>{const img=imgRef.current;if(img)img.src=url+'/frame?t='+Date.now();},100);const ping=setInterval(()=>{fetch(url+'/ping').then(r=>{if(!r.ok)throw new Error('bad');}).catch(()=>{if(!deadRef.current){deadRef.current=true;setDead(true);onDead&&onDead();}});},2000);return()=>{clearInterval(tick);clearInterval(ping);// Panel closed -> hide the native window (bridge stays alive so
 // reopening is fast). The "Đóng GUI" button still POSTs /close (exit).
 try{fetch(url+'/hide',{method:'POST'}).catch(()=>{});}catch(e){}};// eslint-disable-next-line react-hooks/exhaustive-deps
 },[url]);// Embed panel screen rect (physical px) for the bridge's anchored real-input
 // dance: Tauri innerPosition + scaleFactor; window.screenX/Y fallback when
 // not running under Tauri. Refreshed ~500ms so scroll/resize stays current.
-React.useEffect(()=>{let alive=true;const maybeShow=()=>{const r=screenRectRef.current;if(!shownRef.current&&r&&r.w>=4&&r.h>=4){shownRef.current=true;// Show the native window anchored over the panel (bridge stays
-// alive; hidden again by /hide on unmount).
+React.useEffect(()=>{let alive=true;const maybeShow=()=>{const r=screenRectRef.current;if(r&&r.w>=4&&r.h>=4){// Re-POST /show on every refresh (~500ms) so the native window
+// re-anchors over the panel on scroll/drag/resize. Idempotent: the
+// bridge skips SetWindowPos/resize when nothing moved.
 try{fetch(url+'/show',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({rect:r})}).catch(()=>{});}catch(e){}}};const refresh=()=>{const box=boxRef.current;if(!box)return;const r=box.getBoundingClientRect();if(r.width<4||r.height<4)return;try{const tw=window.__TAURI__&&window.__TAURI__.window;if(tw&&tw.getCurrentWindow){Promise.all([tw.getCurrentWindow().innerPosition(),tw.getCurrentWindow().scaleFactor()]).then(([pos,sf])=>{if(!alive||!boxRef.current)return;const rb=boxRef.current.getBoundingClientRect();screenRectRef.current={x:Math.round(pos.x+rb.left*sf),y:Math.round(pos.y+rb.top*sf),w:Math.round(rb.width*sf),h:Math.round(rb.height*sf)};maybeShow();}).catch(()=>{});}else{screenRectRef.current={x:Math.round((window.screenX||0)+r.left),y:Math.round((window.screenY||0)+r.top),w:Math.round(r.width),h:Math.round(r.height)};maybeShow();}}catch(e){}};refresh();const iv=setInterval(refresh,500);return()=>{alive=false;clearInterval(iv);};// eslint-disable-next-line react-hooks/exhaustive-deps
 },[url]);const pt=e=>{const box=boxRef.current,img=imgRef.current;if(!box||!img||!img.naturalWidth||!img.naturalHeight)return null;const r=box.getBoundingClientRect();if(r.width===0||r.height===0)return null;return{x:Math.round((e.clientX-r.left)/r.width*img.naturalWidth),y:Math.round((e.clientY-r.top)/r.height*img.naturalHeight)};};const handle=e=>{const p=pt(e);if(!p)return;post({type:e.type==='mousedown'?'mousedown':e.type==='mouseup'?'mouseup':'mousemove',x:p.x,y:p.y,button:e.button,buttons:e.buttons,rect:screenRectRef.current||undefined});};const close=()=>{try{fetch(url+'/close',{method:'POST'}).catch(()=>{});}catch(e){}onClose&&onClose();};return/*#__PURE__*/React.createElement("div",{className:"relative w-full h-full flex flex-col"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between px-3 py-1.5 bg-slate-900/80 border border-slate-800 rounded-t-lg shrink-0"},/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-violet-300 font-mono"},"VST GUI \u2014 nh\xFAng (frame-capture \xB7 ~10fps)"),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},dead&&/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-red-400 font-mono"},"bridge m\u1EA5t k\u1EBFt n\u1ED1i"),/*#__PURE__*/React.createElement("button",{onClick:close,className:"px-2 py-0.5 bg-red-900/60 hover:bg-red-800 text-red-100 text-[10px] font-semibold rounded transition",title:"\u0110\xF3ng GUI v\xE0 tr\u1EA3 v\u1EC1 graph"},"\u2715 \u0110\xF3ng GUI"))),/*#__PURE__*/React.createElement("div",{ref:boxRef,tabIndex:0,className:"flex-1 relative bg-slate-950 border border-slate-800 rounded-b-lg overflow-hidden outline-none",onMouseDown:handle,onMouseUp:handle,onMouseMove:handle,onMouseLeave:()=>post({type:'mouseup',x:-1,y:-1,button:0}),onWheel:e=>{const p=pt(e);if(p)post({type:'wheel',x:p.x,y:p.y,deltaY:e.deltaY,rect:screenRectRef.current||undefined});},onKeyDown:e=>{e.preventDefault();post({type:'keydown',keyCode:e.keyCode||e.which});},onKeyUp:e=>{e.preventDefault();post({type:'keyup',keyCode:e.keyCode||e.which});}},/*#__PURE__*/React.createElement("img",{ref:imgRef,alt:"VST GUI",className:"w-full h-full object-contain select-none pointer-events-none",draggable:false})));};const vstRow=(s,idx,toggleV,changeV,uploadV,moveV,removeV,fxl,chainLen,openGui,showCarla=true,activeIdx=-1,onSelect=null)=>/*#__PURE__*/React.createElement("div",{key:idx,onClick:()=>onSelect&&onSelect(s,idx),className:`flex items-center gap-2 bg-slate-900/60 border rounded-lg px-2 py-1.5 flex-wrap cursor-pointer transition-all ${activeIdx===idx?'border-teal-400 bg-slate-800/80':'border-slate-800 hover:border-slate-600'}`},/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();toggleV(idx);},className:`w-4 h-4 rounded-full flex items-center justify-center text-[9px] font-bold shrink-0 ${!s.bypass?'bg-teal-500 text-slate-950':'bg-slate-700 text-slate-300'}`,title:s.bypass?'Bypass':'Active'},/*#__PURE__*/React.createElement("i",{"data-lucide":"power",className:"w-2.5 h-2.5"})),/*#__PURE__*/React.createElement("span",{className:"text-[10px] font-bold text-slate-300 font-mono w-6 shrink-0"},idx+1),/*#__PURE__*/React.createElement("select",{value:s.path||'',onClick:e=>e.stopPropagation(),onChange:e=>changeV(idx,e.target.value),className:"flex-1 min-w-[200px] bg-slate-950 border border-slate-700 text-teal-300 rounded px-2 py-1 text-[11px] outline-none focus:border-teal-500"},/*#__PURE__*/React.createElement("option",{value:""},"\u2014 Ch\u1ECDn VST FX \u2014"),(fxl||[]).map(f=>/*#__PURE__*/React.createElement("option",{key:f.path,value:f.path},f.name||f.id))),/*#__PURE__*/React.createElement("span",{className:`text-[9px] font-mono ${s.preset_b64?'text-emerald-400':'text-slate-600'}`},s.preset_b64?'✓ preset':'no preset'),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();uploadV(idx);},className:"px-2 py-1 bg-slate-800 hover:bg-slate-700 text-slate-300 text-[10px] font-semibold rounded transition",title:"Upload .vstpreset (Save preset)"},"Preset"),openGui&&/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();openGui(s,idx);},disabled:!s.path,className:"px-2 py-1 bg-violet-800 hover:bg-violet-700 disabled:opacity-30 text-violet-100 text-[10px] font-semibold rounded transition",title:"M\u1EDF GUI c\u1EE7a VST (ch\u1EC9nh th\xF4ng s\u1ED1 tr\u1EF1c ti\u1EBFp)"},/*#__PURE__*/React.createElement("i",{"data-lucide":"monitor",className:"w-3 h-3"})," GUI"),showCarla&&/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();if(!s.path){window.showToast&&window.showToast('Chọn VST FX trước','warning');return;}window.SonicAPI.openInCarla(s.name||s.path,s.path).then(r=>{if(r&&r.success)window.showToast&&window.showToast('Đã mở Carla với '+(s.name||s.path)+' — chỉnh âm trong Carla rồi Save preset','success');else window.showToast&&window.showToast('Không mở được Carla','error');}).catch(err=>window.showToast&&window.showToast('Lỗi mở Carla: '+(err.message||err),'error'));},className:"px-2 py-1 bg-teal-800 hover:bg-teal-700 text-teal-100 text-[10px] font-semibold rounded transition",title:"M\u1EDF native GUI trong Carla"},"Carla"),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();moveV(idx,-1);},disabled:idx===0,className:"w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30",title:"L\xEAn"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-up",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();moveV(idx,1);},disabled:idx===chainLen-1,className:"w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30",title:"Xu\u1ED1ng"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-down",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();removeV(idx);},className:"text-slate-600 hover:text-red-400 text-xs px-0.5",title:"X\xF3a slot"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"})));// ── VST FX Plugin Picker (spec vst_fx_panel_integration.md §II) ──────────
 // Modal chọn VST FX theo category (heuristic từ backend list_fx.category).
diff --git a/app/templates/index.html b/app/templates/index.html
index 72e9725..68dea57 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -50,7 +50,7 @@
     <script src="/static/js/services/midiExtractor.js?v=202607281052"></script>
     <script src="/static/js/services/promptTemplateManager.js?v=202607281039"></script>
     <script src="/static/js/services/undoRedoEngine.js?v=202607290941"></script>
-    <script src="/static/js/app.precompiled.js?v=202608190001" defer></script>
+    <script src="/static/js/app.precompiled.js?v=202608190002" defer></script>
     <link rel="stylesheet" href="/static/css/styles.css?v=202607271016">
     <style>
         :root {
diff --git a/install/daw_vst_bridge.exe b/install/daw_vst_bridge.exe
index 1cbbcdf..bcdc521 100644
Binary files a/install/daw_vst_bridge.exe and b/install/daw_vst_bridge.exe differ
diff --git a/install/sonicforge-daw.exe b/install/sonicforge-daw.exe
index caa37e5..6a7b68a 100644
Binary files a/install/sonicforge-daw.exe and b/install/sonicforge-daw.exe differ
diff --git a/native_bridge/src/FxGuiServer.cpp b/native_bridge/src/FxGuiServer.cpp
index 493e828..abc032b 100644
--- a/native_bridge/src/FxGuiServer.cpp
+++ b/native_bridge/src/FxGuiServer.cpp
@@ -405,7 +405,10 @@ void relayInput(HWND hwnd, const json_object_s* o) {
             if (!outside) ClientToScreen(target, &pt);
             realClick(pt.x, pt.y, true, button);
         } else if (type == "mousemove") {
-            if (g_dance) {
+            // Drag only: moving the cursor on plain hover fights the webview
+            // (the plugin window sits under the pointer while anchored, so
+            // hover reaches it naturally — no SetCursorPos needed).
+            if (g_dance && buttons != 0) {
                 POINT pt = { x, y };
                 ClientToScreen(target, &pt);
                 SetCursorPos(pt.x, pt.y);
@@ -545,12 +548,20 @@ void runHttpServer(HWND hwnd, std::atomic<bool>& stop) {
             }
             if (sroot) std::free(sroot);
             if (rectOk) {
-                SetWindowPos(hwnd, HWND_TOP, g_embedRect.left, g_embedRect.top,
-                             g_embedRect.right - g_embedRect.left,
-                             g_embedRect.bottom - g_embedRect.top,
-                             SWP_NOACTIVATE | SWP_SHOWWINDOW);
-                fxGuiRequestResize(hwnd, g_embedRect.right - g_embedRect.left,
-                                   g_embedRect.bottom - g_embedRect.top);
+                const int cw = g_embedRect.right - g_embedRect.left;
+                const int ch = g_embedRect.bottom - g_embedRect.top;
+                RECT cur = {};
+                GetWindowRect(hwnd, &cur);
+                const bool same = cur.left == g_embedRect.left && cur.top == g_embedRect.top &&
+                                  cur.right - cur.left == cw && cur.bottom - cur.top == ch;
+                // Frontend re-POSTs /show every ~500ms to re-anchor on scroll;
+                // skip both when nothing moved so the plugin view is not
+                // re-laid-out in a loop. Re-show after /hide regardless.
+                if (!same || !IsWindowVisible(hwnd))
+                    SetWindowPos(hwnd, HWND_TOP, g_embedRect.left, g_embedRect.top,
+                                 cw, ch, SWP_NOACTIVATE | SWP_SHOWWINDOW);
+                if (cur.right - cur.left != cw || cur.bottom - cur.top != ch)
+                    fxGuiRequestResize(hwnd, cw, ch);
                 g_dance = true;
                 g_anchored = true;
                 g_parkUntil = 0;
diff --git a/native_bridge/src/RenderFxJob.cpp b/native_bridge/src/RenderFxJob.cpp
index 49cbc83..9255f7e 100644
--- a/native_bridge/src/RenderFxJob.cpp
+++ b/native_bridge/src/RenderFxJob.cpp
@@ -667,7 +667,9 @@ public:
             int w = rect.right - rect.left;
             int h = rect.bottom - rect.top;
             RECT r = { 0, 0, w, h };
-            AdjustWindowRect(&r, WS_OVERLAPPEDWINDOW, FALSE);
+            // Size to the window's own style: borderless (WS_POPUP) needs no
+            // caption/border adjustment.
+            AdjustWindowRect(&r, GetWindowLongPtrA(hwnd, GWL_STYLE), FALSE);
             SetWindowPos(hwnd, nullptr, 0, 0, r.right - r.left, r.bottom - r.top,
                          SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
             view->onSize(&rect);  // some Skia/OpenGL editors skip first paint
@@ -1192,7 +1194,11 @@ static int fxGuiCreateWindow(const std::string& name, bool offscreen,
     const int x = offscreen ? -20000 : CW_USEDEFAULT;
     const int y = offscreen ? -20000 : CW_USEDEFAULT;
     const DWORD exStyle = offscreen ? WS_EX_TOOLWINDOW : 0;
-    const DWORD style = (offscreen ? (WS_OVERLAPPEDWINDOW & ~WS_MINIMIZEBOX) : WS_OVERLAPPEDWINDOW)
+    // Borderless (WS_POPUP): GetWindowRect == client rect, so anchored
+    // placement over the embed panel is exact. A captioned/bordered window
+    // (WS_OVERLAPPEDWINDOW) put the client area ~31px lower/right of the
+    // requested rect -> cursor jumped on hover and clicks landed on the webview.
+    const DWORD style = (offscreen ? WS_POPUP : WS_OVERLAPPEDWINDOW)
                         | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
     HWND hwnd = CreateWindowExA(exStyle, kFxGuiWndClass,
                                 (name.empty() ? "VST FX" : name).c_str(),