Every 20 minutes or so my dedicated server is crashing, with the same memory address (0x7ff69d8b52f0) trying to access 0xffffffffffffffff

I have noticed other current threads describing server crashes trying to access 0xffffffffffffffff however this is an unhandled exception rather than the listed cause of those other threads, and the calling address of 0x7ff69d8b52f0 differs from the other threads as well.

The crash appears to be time-triggered, as I could not correlate any specific action or circumstance against the crashes. I even tried connecting and simply standing still, and the crash occurred, which implies the cause is not player-triggered per se.

Log output and memory dumps of 3 such crashes attached below