Bug [2020.3.48f1] Possibly a critical Unity bug - Crashed: com.apple.NSURLSession-delegate

Hi.
Some of our users experienced an app crash at launch or after 5-10 seconds after. We can't reproduce crash on our devices.
Here is Crashlytics stack trace:

Crashed: com.apple.NSURLSession-delegate

0  libsystem_platform.dylib       0x1590 _platform_strnlen + 16

1  libsystem_platform.dylib       0x1b3c _platform_strncpy + 44

2  UnityFramework                 0x12228a0 fill_fopen64_filefunc + 296

3  UnityFramework                 0x1c8a1f8 UNITY_LZ4_slideInputBuffer + 6044

4  UnityFramework                 0x1c890fc UNITY_LZ4_slideInputBuffer + 1696

5  UnityFramework                 0x1301564 unzseek64 + 910260

6  UnityFramework                 0x133c580 unzseek64 + 1151952

7  UnityFramework                 0x12b4bf0 unzseek64 + 596544

8  UnityFramework                 0x12fd694 unzseek64 + 894180

9  UnityFramework                 0x1249034 unzseek64 + 155268

10 UnityFramework                 0x12f62ec unzseek64 + 864572

11 CFNetwork                      0x744a8 CFURLResponseCreateWithHTTPResponse + 12456

12 CFNetwork                      0x8db9c _CFHTTPMessageSetResponseProxyURL + 11060

13 libdispatch.dylib              0x2320 _dispatch_call_block_and_release + 32

14 libdispatch.dylib              0x3eac _dispatch_client_callout + 20

15 libdispatch.dylib              0xb534 _dispatch_lane_serial_drain + 668

16 libdispatch.dylib              0xc0d8 _dispatch_lane_invoke + 436

17 libdispatch.dylib              0x16cdc _dispatch_workloop_worker_thread + 648

18 libsystem_pthread.dylib        0xddc _pthread_wqthread + 288

19 libsystem_pthread.dylib        0xb7c start_wqthread + 8

It looks like something bad happening in the UNITY_LZ4_slideInputBuffer function.
All was fine with 2020.3.47f1
Please investigate. Thanks.

 

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We're seeing this as well. Same editor version 2020.3.48f1. Attached stack trace.

 

2020.3.48f1 (officially last 2020.3 version) is completely broken and unusable.
We had to urgently release an update using the previous version 2020.3.47f1 due to this bug

Another Crashlytics stack trace:

Crashed: com.apple.NSURLSession-delegate

0  libsystem_kernel.dylib         0x6bbc __pthread_kill + 8

1  libsystem_pthread.dylib        0xd844 pthread_kill + 208

2  libsystem_c.dylib              0x1f6ac abort + 124

3  libsystem_malloc.dylib         0x1b9d8 _malloc_put + 546

4  libsystem_malloc.dylib         0x1bb88 malloc_report + 60

5  libsystem_malloc.dylib         0x1d00 free + 284

6  UnityFramework                 0x1222738 fill_fopen_filefunc + 628

7  UnityFramework                 0x1c8a218 UNITY_LZ4_slideInputBuffer + 6076

8  UnityFramework                 0x1c890fc UNITY_LZ4_slideInputBuffer + 1696

9  UnityFramework                 0x1301564 unzseek64 + 910260

10 UnityFramework                 0x133c580 unzseek64 + 1151952

11 UnityFramework                 0x12b4bf0 unzseek64 + 596544

12 UnityFramework                 0x12fd694 unzseek64 + 894180

13 UnityFramework                 0x1249034 unzseek64 + 155268

14 UnityFramework                 0x12f62ec unzseek64 + 864572

15 CFNetwork                      0x797dc CFURLResponseCreateWithHTTPResponse + 12180

16 CFNetwork                      0x926dc _CFHTTPMessageSetResponseProxyURL + 18900

17 libdispatch.dylib              0x63094 _dispatch_call_block_and_release + 24

18 libdispatch.dylib              0x64094 _dispatch_client_callout + 16

19 libdispatch.dylib              0xa73c _dispatch_lane_serial_drain$VARIANT$mp + 644

20 libdispatch.dylib              0xb224 _dispatch_lane_invoke$VARIANT$mp + 456

21 libdispatch.dylib              0x14ec8 _dispatch_workloop_worker_thread + 632

22 libsystem_pthread.dylib        0x1e00 _pthread_wqthread + 284

23 libsystem_pthread.dylib        0x192c start_wqthread + 8

 

I'll add our analytics to that as well(exact same stacktrace):

 

I updated to 2021.3.29f but still encounter this error. How to fix it (