Hey there, DoricDream, I've been getting the following error when mashing the interact (circle on Dualshock 4) button during the Level Complete cutscene. Hope it helps with debugging!
############################################################################################ ERROR in action number 1 of Step Event0 for object level_constraints: Variable <unknown_object>.onGround(100167, -2147483648) not set before reading it. at gml_Object_level_constraints_Step_0 ############################################################################################ gml_Object_level_constraints_Step_0 (line -1)