itch.io

I didn't even know that existed. I spent an hour loooting random things trying to figure out what the recipe to make the market was.  On a 4k monitor.

I start game. Screen is small and windowed.
I press F to make it fullscreen. 
Game lags  in full screen for some reason. 
I press F to make it windowed again then press the maximize button to make it large and windowed.
Game crashes.
Can be repeated at will.
I'm new here so if I am missing something please tell me what else would help.
=)

___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of Draw Event
for object objGame:

instance_exists argument 1 incorrect type (undefined) expecting a Number (YYGI32)
at gml_Object_objGame_Draw_0
############################################################################################