Hello,
the crash log indicates a Segmentation Fault (SIGSEGV), usually caused by accessing bad memory. Since your build hasn't changed, the problem is likely an external conflict.
Please check the compatibility. Could a recent Meta Quest system update may be incompatible with your Unreal/Meta XR plugin versions?
To help diagnose this, could you provide these details?
- What Meta Quest Headset Firmware Version are you currently using?
- What Meta XR Plugin Version is integrated into your Unreal Engine 5.5.4 project?
Maybe you can just update your plugin and rebuild the .APK?
If this answers your question, please mark it as solved.
~ Nigel (XR Bootcamp)