When changing a numeric field in user preferences, on screen keyboard won't go away anymore

I tried to change the startup macro, but after entering the values, hitting enter, pressing the OK button brings up the keyboard again. If I close it, OK button graphic is stuck and pressing it again will bring up the keyboard back again. Same behavior with the apply and cancel button other text fields in user prefs are affected, too.

Console: RoadHog4, Hog OS 3.12