diff --git a/src/main.ts b/src/main.ts
index c18e529..740bc5f 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -40,6 +40,9 @@ export default function () {
   // Stored on the Figma file via clientStorage (survives close/reopen). Saved after every
   // action and periodically (to catch the native Figma drag-by-titlebar the plugin can't see).
   const PLACEMENT_KEY = 'figma-ai-plugin:placement'
+  // Main-side mirror of the maximize toggle, so the periodic native-drag poller can
+  // re-persist it (otherwise it would overwrite the maximized flag with undefined).
+  let maximizedState = false
   type Placement =
     | { mode: 'dock'; position: DockPosition }
     | { mode: 'free'; x: number; y: number; w: number; h: number; maximized?: boolean }
@@ -57,6 +60,7 @@ export default function () {
   // Used by maximize and corner docks, which must remember the EXACT size/position
   // rather than re-deriving it from a dock formula (which would reset the size).
   function saveFreeFromCurrent (maximized?: boolean) {
+    if (maximized !== undefined) maximizedState = maximized === true
     try {
       const pos = (figma.ui as any).getPosition()
       savePlacement({
@@ -65,7 +69,7 @@ export default function () {
         y: Math.round(pos.canvasSpace.y),
         w: lastSize.width,
         h: lastSize.height,
-        maximized: maximized === true
+        maximized: maximizedState
       })
     } catch (e) { /* getPosition unavailable — skip */ }
   }
@@ -182,7 +186,8 @@ export default function () {
           x: Math.round(pos.canvasSpace.x),
           y: Math.round(pos.canvasSpace.y),
           w: lastSize.width,
-          h: lastSize.height
+          h: lastSize.height,
+          maximized: maximizedState
         })
       }
     } catch (e) { /* getPosition unavailable — skip */ }
@@ -278,6 +283,8 @@ export default function () {
       applyDock(dockedPosition, width, height, false)
       savePlacement({ mode: 'dock', position: dockedPosition })
     } else {
+      // Free (or center one-shot): manual resize clears the maximized flag.
+      maximizedState = false
       // Free (or center one-shot): save the actual canvas-space position + size.
       try {
         const pos = (figma.ui as any).getPosition()
@@ -317,6 +324,8 @@ export default function () {
       lastBoundsKey = '' // форсируем пересчёт на ближайшем тике
     } else {
       dockedPosition = null
+      // Restore (center) or a corner teleport clears the maximized state.
+      maximizedState = false
     }
     // Попытка растяжения до канона (Figma клампит до лимита при видимом UI).
     const state = computeDock(position, payload.width, payload.height, true)
@@ -361,6 +370,7 @@ export default function () {
     figma.ui.resize(size.width, size.height)
     // Выходим из дока: чистый клик = телепорт в угол без удержания.
     dockedPosition = null
+    maximizedState = false
     lastBoundsKey = ''
     lastSize = { width: size.width, height: size.height }
     // Прижимаем в угол от реального размера (computeDock для угла не меняет размер).
@@ -383,7 +393,7 @@ export default function () {
   on('SAVE_FREE', function (payload?: { maximized?: boolean }) {
     dockedPosition = null // maximize is not held; clear any stale dock state
     lastBoundsKey = ''
-    saveFreeFromCurrent(payload != null ? payload.maximized === true : false)
+    saveFreeFromCurrent(payload != null ? payload.maximized === true : maximizedState)
   })
 
   // Останавливаем поллинг при закрытии плагина, чтобы не висел в памяти.
@@ -500,6 +510,7 @@ export default function () {
         } else {
           // Edge dock: stretch to its canonical size and pin (held across zoom/pan).
           dockedPosition = saved.position
+          maximizedState = false
           const state = computeDock(saved.position, 320, 200, true)
           figma.ui.resize(state.width, state.height)
           lastSize = { width: clampWindowSize(state).width, height: clampWindowSize(state).height }
@@ -515,8 +526,10 @@ export default function () {
         figma.ui.resize(saved.w, saved.h)
         figma.ui.reposition(saved.x, saved.y)
         lastSize = { width: saved.w, height: saved.h }
-        // If it was maximized, tell UI to show the Restore button on next open.
+        // If it was maximized, remember it (so the poller re-persists the flag) and tell
+        // UI to show the Restore button on next open.
         if (saved.maximized === true) {
+          maximizedState = true
           emit('SET_MAXIMIZED', { maximized: true })
         }
       }