Maybe... but why it happen suddenly?

And... at the moment, I don't powertrain (League is not won yet).
Most days like this:
First matc with condition ~80-90%, one easy Training (max. 6%) for the whole team, second training for subs, drills depent on their restlevel, second match.
Than I plan, when they are fully rested. If they need a training before serverreset, they get it, next day: 1-2 trainings (depents on coming opponent/time until next match), use restpacks (also depents on opponent).

Normally my squad plays ~80-90% condition, usage of green packs: normally 0-10; max. 20/day. It works for me.

It also worked 2 full seasons, so... maybe there's a change, which want you to use more than your top11 (and subs during the game) or there's an issue.

Last two games were "normal" again (both League, vs 11. and 13.place...) - let's see todays cup-semi.