Same problem for me, a lot of achievements are stil locked. At first i thought it was because i got logged off on my steam deck, so i started a new game. But they are still missing.

I've noticed this also, I managed to get up to "Power Within" unlocked (from the INTENSO training), but all of the others dont unlock, like all the quest specific ones like "Pollo Power" (become a chicken) and "X'tabay-Bye" for beating the lady boss.

Gonna try again on normal mode to see if they trigger but this is VERY annoying

same problem here in my steam deck with a couple of achivements. i think it happened when i was playing without internet.

Got an achievement just now, seems to work fine.
Funnily, it's the same achievement Ocanris mentioned.

Two people mentioned Steam deck but that's only two as far as I know so I can't say it's that.

Hello, we're investigating the issues with achievements. Unfortunately, we don't have a consistent solution right now. As some users have mentioned, achievements can sometimes start working again after some time.
If you are experiencing issues, please send an email to support@drinkboxstudios.com with as much relevant information as possible. Such as:
- All achievements that have been affected (achievements that correctly appeared, and ones that didn't)
- What you have tried to do after you noticed that achievements stopped appearing (for example, how long have you played the game for after you noticed achievements stopped?)
- What operating system you are on (Windows 10/11)
- What region/country you are playing the game from, and what language you are playing the game in
- If you were having any internet connection issues around the time of the issue
Thank you and sorry for the inconvenience.