usi-ls breaking my save

[Polyphonus]

Hi,
I really want to play with usi-ls since a long time but I have the same issue again and again.

I attach the log for the last try I made. It was on Manjaro with ksp version 1.5.1 and the constallation package. But I had the same issue on windows 10 with 1.6.1 and the 1.1.0.0 version of every part of USI.

So basically , if one of the the timer of a kerbal pass one of the limit and expired . My crew is limited to 12 kerbals with max 10 kerbals available and I became unable to hire more crew. So this bug is corrupting my save if I do a mistake.

The last try I made was with (almost) only USI mod installed.

KSP.log