Really often recorded replays are corrupted(?) and showing this message at specific times (or when jumping to after that time)

version 1.12.2-2.4.3

Please attach the latest.log of when it happened, that should have more details than just "A fatal error".

I'm having same problem.
debug.log
latest.log

@Vodulm that looks like it's a bug (or some kind of incompatibility) in LittleTiles, I'd suggest you open an issue on their tracker and include your latest.log in it.