All proficiencies back to 5

Hi.
All my proficiencies are back to 5 and I'm pretty sure there were no KO loops involved.
https://i.imgur.com/JlkQCFg.png
In the process of escaping from a raided base of mine with my alt, braziers KOed me 3 times (one time on a vClaim and two times on pClaim+vClaim).
I was repoping at my leanto on the alien claim after a delay with the minimal amount of black bile (maybe 5 idk).
Eventually I managed to free my alt it's ok now, but then I checked his proficiencies and noticed the big loss
I'm not sure if a bug occured at some point because as I said I'm pretty sure there was no KO loop or such.
This alt is not sick, has no madness, no bat on the neck or anything nasty ; just black bile KO and repop.
All my proficiencies are back to 5 and I'm pretty sure there were no KO loops involved.
https://i.imgur.com/JlkQCFg.png
In the process of escaping from a raided base of mine with my alt, braziers KOed me 3 times (one time on a vClaim and two times on pClaim+vClaim).
I was repoping at my leanto on the alien claim after a delay with the minimal amount of black bile (maybe 5 idk).
Eventually I managed to free my alt it's ok now, but then I checked his proficiencies and noticed the big loss

I'm not sure if a bug occured at some point because as I said I'm pretty sure there was no KO loop or such.
This alt is not sick, has no madness, no bat on the neck or anything nasty ; just black bile KO and repop.