More of a note to other people who will encounter this problem than a bugreport.
I installed vitastick with easyplugin and it put it on the bottom of config.txt, as it usually does. But the app caused an error on startup. After I moved ux0:tai/vitastick.skprx to 4th line above most and under only adrenaline it simply started working.
After disabling every other plugin one by one I can find which one caused it