Hi, new here, just registered to report this same problem.
It might be different, but OP doesn’t respond anymore anyway, so I’m taking over with my details:
iPad Air 3, iPadOS, all other apps closed
When editing RAW in the development persona, it takes a while and crashes at some point. Just closes and all edits are gone.
It happened with 2 different files from Canon EOS 1300D. One takes a bit longer though until it crashes. Crashed reliably 5 times, I guess there’s a bug.
Swap before / after seems to toggle the crash earlier (no confirming test series though)