I'm still getting crashes, albeit it seems they're not as frequent as before - had three in a hour and half. Could you please provide me with your build+mapfile? Thanks.
If it may be of any help, I've noticed the crashes do happen more often while cycling through relatively few files (10-15) inside the same directory, instead of larger (100+ files) ones. The earliest build I can confirm has the bug is this one:
2023-01-15 buflib: Add CONFIG_BUFLIB_BACKEND for selecting a buflib backend
Edit: I should have replied in the Clip+ thread, my bad.