diff --git a/apps/ai-game-creator-shell/src/components/game-distribution/useGameDistributionPublishForm.ts b/apps/ai-game-creator-shell/src/components/game-distribution/useGameDistributionPublishForm.ts
index abee79220..3723f2953 100644
--- a/apps/ai-game-creator-shell/src/components/game-distribution/useGameDistributionPublishForm.ts
+++ b/apps/ai-game-creator-shell/src/components/game-distribution/useGameDistributionPublishForm.ts
@@ -386,6 +386,8 @@ export function useGameDistributionPublishForm({
     publicationDraftAppliedRef.current = false;
     restoredDeclarationsRef.current = null;
     uploadedAssetCacheRef.current.clear();
+    // 截图预览地址只登记在这里，没有「跟着某个 state 收」的效应；换项目时不清就会一直攒到卸载。
+    revokeTrackedObjectUrls(objectUrlsRef.current);
 
     const suggestionRequestId = ++metadataSuggestionRequestRef.current;
     void suggestGameDistributionPublishMetadata({