Couple of bugs possibly?
 

I was looking for some pinned topic with reported bug so i don't double up on those but so far i found nothing (correct me if im blind :) )
1st bug is with repair time @ port: I docked my 688 with damaged bow sonar. It was supposed to take 40+ hrs (or so if i remember correctly) to repair it. After about 25 hrs i had one of those "campaign events" - NATO landed in Netherlands i think. After coming back to port screen i found the repair timer has stopped (not paused) and i had to start all over - with another 40+ hour wait. Basically looks like event that happenes mid repair breaks the repair.

2nd bug (dunno if it's a bug in fact) - game freezes whenver there is a problem with connection to steam. I.e. mid game if there is a connectivity issue game starts to lag - It freezes for few seconds, than un-freezew for few, frezzes again and so on. This lasts untill connection to steam is restored.