[macOS] Lightroom Classic 15.3 intermittently hangs; after Force Quit it can no longer open RAW files, while 15.2.1 works

Issue summary
On my Mac, Lightroom Classic 15.3 becomes unresponsive after some period of normal use. I have to Force Quit it. After that, Lightroom Classic can relaunch, but RAW files can no longer be opened properly. I cannot guarantee exact reproduction steps every time, but the issue has happened multiple times in 15.3 and has not happened for me in 15.2.1 on the same machine.

Environment
- Lightroom Classic: 15.3
- macOS: 26.4.1
- Apple Silicon Mac: M1 Max

What I can confirm
- This issue started after updating to 15.3.
- It happens after some time of normal RAW workflow use, not immediately on launch.
- Once Lightroom hangs, I have to Force Quit it.
- After relaunch, RAW files still cannot be opened properly.
- Downgrading to 15.2.1 on the same Mac resolves the issue.

Relevant lines from the report:

Process:      Adobe Lightroom Classic [12526]
Version:      15.3
OS Version:      Mac OS X 26.4.1 (25E253)
Exception Type:      EXC_CRASH (SIGTERM)
Signal Number:      15
Publisher Process Name:      pkill

Thread 62:
0   AdobeCrashReporter                  _callstack_signal_handler(int, __siginfo*, void*) + 60
1   libsystem_platform.dylib            _sigtramp + 56
2   ???                                 0x0000000901c651d0 0x0 + 38684479952
3   CameraRaw                           AgCoreGraphicsOGL_load + 17439284
4   CameraRaw                           AgCoreGraphicsOGL_load + 8547028
5   CameraRaw                           AgCoreGraphicsOGL_load + 5852652
6   libdispatch.dylib                   _dispatch_client_callout2 + 16
7   libdispatch.dylib                   _dispatch_apply_invoke3 + 336
8   libdispatch.dylib                   _dispatch_client_callout + 16
9   libdispatch.dylib                   _dispatch_once_callout + 32
10  libdispatch.dylib                   _dispatch_apply_invoke_and_wait + 364
11  libdispatch.dylib                   _dispatch_apply_with_attr_f + 1312
12  CameraRaw                           AgCoreGraphicsOGL_load + 5852900
13  CameraRaw                           AgCoreGraphicsOGL_load + 8542352
14  CameraRaw                           AgCoreGraphicsOGL_load + 17442892
15  CameraRaw                           AgCoreGraphicsOGL_load + 8658680
16  CameraRaw                           AgCoreGraphicsOGL_load + 17492120
17  CameraRaw                           AgCoreGraphicsOGL_load + 9852988
18  CameraRaw                           AgCoreGraphicsOGL_load + 6204072
19  CameraRaw                           private_load_Utilities + 96316

com.adobe.GPUFoundation.framework
VulcanMessage5.dylib
VulcanControl.dylib
com.adobe.ag.AgImageIO ... /CameraRaw.lrtoolkit/Versions/A/CameraRaw
com.adobe.ag.vulcan ... /Vulcan.agtoolkit/Contents/MacOS/Vulcan