I did a big of digging using logcat, not an android professional but I found some process called "GameManagerService" which first checks if gos is disabled/uninstalled, then "ApplicationPolicy" proceeds to reenable/reinstall gos automagically. Goo...
Great ROM, really appreciate your work. Is it possible to add an option to increase touch screen sensitivity? Phone sometimes does not respond to my touch due to a glass screen protector...
It depends on the lighting
Try and go outside, on a sunny and bright day, point at the clouds or something, and zoom
Then cover the center camera, it should be using the 2x lens (can confirm with my SM-N960F)
Do you have a magnet close by the phone? It interferes with the spen tracking
can you specify where exactly is the "small part of the screen"? dial *#0*# and test the s-pen?