Oh boy, is this embarrassing...
So, ehm, yea, i disabled screen lock (read somewhere that overlay like apps, or screen locks can sooometimes cause that problem) and kinda restarted my phone and the problem got ...fixed.
Feel kinda dumb for posting a thread without doing basic troubleshooting myself, but after 13 hours of work my ability to function as a normal thinking human has strongly diminished.
Thank you Brannon for your help, greatly appreciate it! Had uninstalled PRO and deleted all files before, maybe something was stuck in memory and just restart was needed.
Thanks, consider the problem solved :)