Players' Boot Failure

Hi everyone. I am investigating a first launch issue in my project (One Shot Beat) where the game appears to stop during startup, usually while Unity is performing its initial graphics/ shader warmup.

Our diagnostics show that, until the final recorded moment, Unity and the headset’s XR rendering are still responsive. The leading suspicion is therefore a failure or termination shortly afterward, somewhere in the cold start graphics/ initialization path but the exact cause is not yet confirmed.

What we can rule out is:
- It is not limited to one headset model; we’ve seen the pattern on Quest 2, Quest 3, and Quest 3S.
- It is not simply the Unity thread freezing before the last recorded sample.
- It is not solely caused by a missing shader/PSO cache, because the same pattern has occurred with a cache already present.
- We currently have no evidence proving an ANR, out of memory kill, thermal issue, or one specific GPU crash.

Has anyone experienced a similar problem before? Apparently 1/3 of my new players gets this problem. I need device logs on failure but all the devices I tested launched properly. I’d also really appreciate volunteers willing to install and try it.