I believe the skilltree is also bugged, but the hotfix did fix the energy problem!
Just to clarify, I can only unlock the handjob and footjob in the tech skilltree and it seems like even with 50 affection, strength, and stamina I still can't unlock anything else at all.
There are only 2 unlockables for now. I'll make sure to put a cross on the unavailable ones in the next update.
