Thanks 
also spotted related ticket last night and so far good. No more AllEnabledTickFunctions.Remove crashes yet, but still getting freezes that seem to be related to ai controllers. I noticed “cast to character” dosent always success, especially it connected to “controlled pawn” and if that is connected to play montage (as converted pure cast), that seem to cause crashing. After changes getting noticeable less freezes but still too many. Will keep working on that. Also check if there is some other blueprints with tick over 0.0. Been using much slow ticks, but will use then event timers instead.
But will try that PostUpdateWork settings. Also check the visual debugger.