diff --git a/src/renderer/src/components/right-sidebar/checks-panel/comment-controls.tsx b/src/renderer/src/components/right-sidebar/checks-panel/comment-controls.tsx
index db49fca4ee0..89c3e54d2c3 100644
--- a/src/renderer/src/components/right-sidebar/checks-panel/comment-controls.tsx
+++ b/src/renderer/src/components/right-sidebar/checks-panel/comment-controls.tsx
@@ -18,6 +18,8 @@ import {
   DropdownMenuTrigger
 } from '@/components/ui/dropdown-menu'
 import { cn } from '@/lib/utils'
+import { useAppStore } from '@/store'
+import { isReviewThreadResolutionInFlight } from '@/store/github/review-thread-resolution-in-flight'
 import { basename } from '@/lib/path'
 import { isBotPRComment } from '../../../../../shared/pr-comment-audience'
 import { setPRBotAuthorOverride } from '@/lib/pr-bot-author-overrides'
@@ -99,6 +101,8 @@ export function ResolveButton({
   onResolve: (threadId: string, resolve: boolean) => boolean | Promise<boolean>
 }): React.JSX.Element {
   const [loading, setLoading] = useState(false)
+  // Why: the optimistic move remounts this button in the other section, losing local loading state.
+  const inFlight = useAppStore((s) => isReviewThreadResolutionInFlight(s, threadId))
   const loadingResetTimerRef = useRef<number | null>(null)
 
   const clearLoadingResetTimer = useCallback((): void => {
@@ -129,7 +133,7 @@ export function ResolveButton({
 
   return (
     <span ref={setResolveButtonRootRef} className="contents">
-      {loading ? (
+      {loading || inFlight ? (
         <LoaderCircle className="size-3 animate-spin text-muted-foreground shrink-0" />
       ) : (
         <button
diff --git a/src/renderer/src/components/right-sidebar/checks-panel/use-checks-panel-comment-resolution.tsx b/src/renderer/src/components/right-sidebar/checks-panel/use-checks-panel-comment-resolution.tsx
index 2b8fc9117f3..11d7c14bfad 100644
--- a/src/renderer/src/components/right-sidebar/checks-panel/use-checks-panel-comment-resolution.tsx
+++ b/src/renderer/src/components/right-sidebar/checks-panel/use-checks-panel-comment-resolution.tsx
@@ -21,6 +21,7 @@ import {
 import type { PRComment } from '../../../../../shared/github/comment-types'
 import { translate } from '@/i18n/i18n'
 import { useAppStore } from '@/store'
+import { isReviewThreadResolutionInFlight } from '@/store/github/review-thread-resolution-in-flight'
 import { worktreeLaunchWorkspace } from '@/lib/agent-launch-route-input'
 
 type ChecksPanelCommentResolutionInput = Pick<
@@ -106,6 +107,10 @@ export function useChecksPanelCommentResolution(model: ChecksPanelCommentResolut
       if (!repo || !prNumber) {
         return false
       }
+      // Why: skip the local optimistic flip too; the store no-ops overlapping requests.
+      if (isReviewThreadResolutionInFlight(useAppStore.getState(), threadId)) {
+        return true
+      }
       const requestKey = checksPanelAsyncResultKey(
         prCacheKey,
         branch,
diff --git a/src/renderer/src/store/github/review-thread-actions.ts b/src/renderer/src/store/github/review-thread-actions.ts
index 6c0ec19df13..3e3a353954a 100644
--- a/src/renderer/src/store/github/review-thread-actions.ts
+++ b/src/renderer/src/store/github/review-thread-actions.ts
@@ -12,6 +12,10 @@ import {
   getGitHubSourceTarget,
   getGitHubWorkItemRequestContext
 } from './work-item-routing'
+import {
+  reviewThreadInFlightKey,
+  withReviewThreadInFlight
+} from './review-thread-resolution-in-flight'
 
 export const createReviewThreadActions = (
   set: Parameters<StateCreator<AppState>>[0],
@@ -34,77 +38,88 @@ export const createReviewThreadActions = (
       repo !== undefined
     )
 
-    const previousThreadComments =
-      get().commentsCache[cacheKey]?.data?.filter((comment) => comment.threadId === threadId) ?? []
-    if (previousThreadComments.length > 0) {
-      set((s) => {
-        const entry = s.commentsCache[cacheKey]
-        if (!entry?.data) {
-          return s
-        }
-        return {
-          commentsCache: {
-            ...s.commentsCache,
-            [cacheKey]: {
-              ...entry,
-              data: markPRCommentThreadResolved(entry.data, threadId, resolve)
+    const inFlightKey = reviewThreadInFlightKey(cacheKey, threadId)
+    // Why: overlapping opposite requests can settle in either order; true keeps callers from toasting or rolling back.
+    if (get().reviewThreadResolutionsInFlight[inFlightKey] !== undefined) {
+      return true
+    }
+    set((s) => withReviewThreadInFlight(s, inFlightKey, threadId))
+    try {
+      const previousThreadComments =
+        get().commentsCache[cacheKey]?.data?.filter((comment) => comment.threadId === threadId) ??
+        []
+      if (previousThreadComments.length > 0) {
+        set((s) => {
+          const entry = s.commentsCache[cacheKey]
+          if (!entry?.data) {
+            return s
+          }
+          return {
+            commentsCache: {
+              ...s.commentsCache,
+              [cacheKey]: {
+                ...entry,
+                data: markPRCommentThreadResolved(entry.data, threadId, resolve)
+              }
             }
           }
-        }
-      })
-    }
+        })
+      }
 
-    const requestContext = getGitHubWorkItemRequestContext(
-      get(),
-      getGitHubSourceTarget(get(), repo, options?.sourceContext),
-      repoId ?? repoPath,
-      repoPath,
-      options?.sourceContext
-    )
-    let ok = false
-    try {
-      ok =
-        requestContext.target.kind === 'environment'
-          ? await callRuntimeRpc<boolean>(
-              { kind: 'environment', environmentId: requestContext.target.environmentId },
-              'github.resolveReviewThread',
-              {
-                repo: requestContext.target.runtimeRepoId,
+      const requestContext = getGitHubWorkItemRequestContext(
+        get(),
+        getGitHubSourceTarget(get(), repo, options?.sourceContext),
+        repoId ?? repoPath,
+        repoPath,
+        options?.sourceContext
+      )
+      let ok = false
+      try {
+        ok =
+          requestContext.target.kind === 'environment'
+            ? await callRuntimeRpc<boolean>(
+                { kind: 'environment', environmentId: requestContext.target.environmentId },
+                'github.resolveReviewThread',
+                {
+                  repo: requestContext.target.runtimeRepoId,
+                  threadId,
+                  resolve,
+                  prRepo: options?.prRepo ?? null
+                },
+                { timeoutMs: 30_000 }
+              )
+            : await window.api.gh.resolveReviewThread({
+                repoPath,
+                repoId,
                 threadId,
                 resolve,
-                prRepo: options?.prRepo ?? null
-              },
-              { timeoutMs: 30_000 }
-            )
-          : await window.api.gh.resolveReviewThread({
-              repoPath,
-              repoId,
-              threadId,
-              resolve,
-              prRepo: options?.prRepo ?? null,
-              sourceContext: options?.sourceContext
-            })
-    } catch (err) {
-      console.error('Failed to update review thread:', err)
-      ok = false
-    }
-    if (!ok && previousThreadComments.length > 0) {
-      set((s) => {
-        const entry = s.commentsCache[cacheKey]
-        if (!entry?.data) {
-          return s
-        }
-        return {
-          commentsCache: {
-            ...s.commentsCache,
-            [cacheKey]: {
-              ...entry,
-              data: restorePRCommentThreadSnapshot(entry.data, previousThreadComments)
+                prRepo: options?.prRepo ?? null,
+                sourceContext: options?.sourceContext
+              })
+      } catch (err) {
+        console.error('Failed to update review thread:', err)
+        ok = false
+      }
+      if (!ok && previousThreadComments.length > 0) {
+        set((s) => {
+          const entry = s.commentsCache[cacheKey]
+          if (!entry?.data) {
+            return s
+          }
+          return {
+            commentsCache: {
+              ...s.commentsCache,
+              [cacheKey]: {
+                ...entry,
+                data: restorePRCommentThreadSnapshot(entry.data, previousThreadComments)
+              }
             }
           }
-        }
-      })
+        })
+      }
+      return ok
+    } finally {
+      set((s) => withReviewThreadInFlight(s, inFlightKey, null))
     }
-    return ok
   }
 })
diff --git a/src/renderer/src/store/github/review-thread-resolution-in-flight.ts b/src/renderer/src/store/github/review-thread-resolution-in-flight.ts
new file mode 100644
index 00000000000..c65d3a99b35
--- /dev/null
+++ b/src/renderer/src/store/github/review-thread-resolution-in-flight.ts
@@ -0,0 +1,26 @@
+import type { GitHubSlice } from './slice-types'
+
+type InFlightState = Pick<GitHubSlice, 'reviewThreadResolutionsInFlight'>
+
+export function reviewThreadInFlightKey(commentsCacheKey: string, threadId: string): string {
+  return `${commentsCacheKey}\u0000${threadId}`
+}
+
+/** Thread node IDs are globally unique, so UI callers without a cache key can match on threadId. */
+export function isReviewThreadResolutionInFlight(state: InFlightState, threadId: string): boolean {
+  return Object.values(state.reviewThreadResolutionsInFlight).includes(threadId)
+}
+
+export function withReviewThreadInFlight(
+  state: InFlightState,
+  key: string,
+  threadId: string | null
+): InFlightState {
+  const next = { ...state.reviewThreadResolutionsInFlight }
+  if (threadId === null) {
+    delete next[key]
+  } else {
+    next[key] = threadId
+  }
+  return { reviewThreadResolutionsInFlight: next }
+}
diff --git a/src/renderer/src/store/github/slice-types.ts b/src/renderer/src/store/github/slice-types.ts
index 4fc26ae353f..0de898af143 100644
--- a/src/renderer/src/store/github/slice-types.ts
+++ b/src/renderer/src/store/github/slice-types.ts
@@ -47,6 +47,8 @@ export type GitHubSlice = {
   issueCache: Record<string, CacheEntry<IssueInfo>>
   checksCache: Record<string, CacheEntry<PRCheckDetail[]>>
   commentsCache: Record<string, CacheEntry<PRComment[]>>
+  /** Resolve/unresolve requests in flight: comments cacheKey + threadId -> threadId. */
+  reviewThreadResolutionsInFlight: Record<string, string>
   prRefreshSequences: Record<string, number>
   prRefreshStates: Record<string, PRRefreshState>
   prVisibleRefreshGeneration: number
diff --git a/src/renderer/src/store/slices/github-review-thread-rollback.test.ts b/src/renderer/src/store/slices/github-review-thread-rollback.test.ts
index c743b8aee2e..5dc3889fa4e 100644
--- a/src/renderer/src/store/slices/github-review-thread-rollback.test.ts
+++ b/src/renderer/src/store/slices/github-review-thread-rollback.test.ts
@@ -55,3 +55,34 @@ it('keeps a reply posted while a failed unresolve was pending, with the thread s
     { ...restReply, isResolved: true }
   ])
 })
+
+it('ignores an opposite resolve on a thread while the first request is in flight', async () => {
+  const store = makeStore()
+  const first = Promise.withResolvers<boolean>()
+  mockApi.gh.resolveReviewThread.mockReturnValueOnce(first.promise)
+  const pending = store.getState().resolveReviewThread(repoPath, 12, threadId, true, options)
+  await expect(
+    store.getState().resolveReviewThread(repoPath, 12, threadId, false, options)
+  ).resolves.toBe(true)
+  expect(mockApi.gh.resolveReviewThread).toHaveBeenCalledTimes(1)
+  expect(store.getState().commentsCache[cacheKey]?.data?.[0].isResolved).toBe(true)
+  first.resolve(true)
+  await expect(pending).resolves.toBe(true)
+})
+
+it('releases the thread after a failed request so it can be resolved again', async () => {
+  const store = makeStore()
+  const first = Promise.withResolvers<boolean>()
+  mockApi.gh.resolveReviewThread.mockReturnValueOnce(first.promise)
+  const pending = store.getState().resolveReviewThread(repoPath, 12, threadId, true, options)
+  await store.getState().resolveReviewThread(repoPath, 12, threadId, true, options)
+  first.reject(new Error('socket closed'))
+  await expect(pending).resolves.toBe(false)
+  expect(store.getState().reviewThreadResolutionsInFlight).toEqual({})
+  mockApi.gh.resolveReviewThread.mockResolvedValueOnce(true)
+  await expect(
+    store.getState().resolveReviewThread(repoPath, 12, threadId, true, options)
+  ).resolves.toBe(true)
+  expect(mockApi.gh.resolveReviewThread).toHaveBeenCalledTimes(2)
+  expect(store.getState().commentsCache[cacheKey]?.data?.[0].isResolved).toBe(true)
+})
diff --git a/src/renderer/src/store/slices/github.ts b/src/renderer/src/store/slices/github.ts
index 4d3b2f5335d..f7db58eac8c 100644
--- a/src/renderer/src/store/slices/github.ts
+++ b/src/renderer/src/store/slices/github.ts
@@ -35,6 +35,7 @@ export const createGitHubSlice: StateCreator<AppState, [], [], GitHubSlice> = (
   issueCache: {},
   checksCache: {},
   commentsCache: {},
+  reviewThreadResolutionsInFlight: {},
   prRefreshSequences: {},
   prRefreshStates: {},
   prVisibleRefreshGeneration: 0,