whole crew permanently fatigued: any way out?

[Tozzifan]

hi,
I'm sorry I don't remember whether a few years ago I encountered the same problem, playing RuB145 SH3, so I don't remember how I managed the issue:

1940, in latest couple of campaign missions, after a few days of searching for merchants, having achieved standard objectives, the sub has come to a stop in the middle of a fjord: everyone was exhausted! : nothing changed after more than fifteen hours of complete stop (time compression 8-64x): thence I terminated the patrols

I like crew management active in SH3 commander and I wouldn't like to disable it, yet I didn't like to be stuck as well

is there anything I didn't consider?

thanks