### Operating System observed on iphone, windows 10 ### Environment (if applicable) observed on chrome, edge, safari ### Firebase SDK Version 12.9.0 ### Firebase SDK Product(s) Firestore ### Project Tooling Angular 21, firebase 12.9.0 ### Detailed Problem Description Our application has logged crashes for users with the following error message: <img width="2205" height="731" alt="Image" src="https://github.com/user-attachments/assets/153df2a5-ad64-4795-b9f6-405e9b89b113" /> Error: FIRESTORE (12.4.0) INTERNAL ASSERTION FAILED: Unexpected state (ID: 3c6b) CONTEXT: {"code":"storage/unknown"} at WB (https://www.acro-companion.com/chunk-6EAIQ55X.js:38:11134) at Qe (https://www.acro-companion.com/chunk-6EAIQ55X.js:38:10935) at F$ (https://www.acro-companion.com/chunk-6EAIQ55X.js:41:501) at XR.Zu (https://www.acro-companion.com/chunk-6EAIQ55X.js:50:22520) at XR.Yu (https://www.acro-companion.com/chunk-6EAIQ55X.js:50:22288) at https://www.acro-companion.com/chunk-6EAIQ55X.js:50:22057 Error: FIRESTORE (12.9.0) INTERNAL ASSERTION FAILED: Unexpected state (ID: b815) CONTEXT: {"Pc":"Error: FIRESTORE (12.9.0) INTERNAL ASSERTION FAILED: Unexpected state (ID: 3c6b) CONTEXT: {\"code\":\"auth/network-request-failed\"}\n at y4 (https://www.acro-companion.com/chunk-WRQGIPFU.js:58:11251)\n at si (https://www.acro-companion.com/chunk-WRQGIPFU.js:58:11049)\n at pU (https://www.acro-companion.com/chunk-WRQGIPFU.js:61:518)\n at rF.Xu (https://www.acro-companion.com/chunk-WRQGIPFU.js:70:22461)\n at rF.Zu (https://www.acro-companion.com/chunk-WRQGIPFU.js:70:22229)\n at https://www.acro-companion.com/chunk-WRQGIPFU.js:70:21972"} at y4 (https://www.acro-companion.com/chunk-WRQGIPFU.js:58:11251) at si (https://www.acro-companion.com/chunk-WRQGIPFU.js:58:11049) at XS.uc (https://www.acro-companion.com/chunk-WRQGIPFU.js:70:36849) at XS.enqueue (https://www.acro-companion.com/chunk-WRQGIPFU.js:70:36040) at XS.enqueueAndForget (https://www.acro-companion.com/chunk-WRQGIPFU.js:70:35782) at n.handleDelayElapsed (https://www.acro-companion.com/chunk-WRQGIPFU.js:67:6407) at https://www.acro-companion.com/chunk-WRQGIPFU.js:67:6165 This has been happening since 12.4.0 and is still happening with 12.9.0 ### Steps and code to reproduce issue Only happens for users, so not clear how to reproduce