DatabaseIntegrity Xml ParseIntError InvalidDigit?

[thomas725]

I've tried to compare 2 versions of a kdbx file of mine with your tool. Both work fine when opening them in KeepassXC, but your tool tells me there's some integrity issue?

thread 'main' (295210) panicked at src/main.rs:122:18:
Error opening database A: DatabaseIntegrity(Xml(IntFormat(ParseIntError { kind: InvalidDigit })))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Can you help me solve this?
I'm running on NixOS using this package: https://search.nixos.org/packages?channel=25.11&show=keepass-diff

UPDATE:
I've also tried it like this now:

RUSTFLAGS="-C target-cpu=native" cargo install keepass-diff
 /home/user/.cargo/bin/keepass-diff -v ...

but sadly got the same result shown above.