I have a character object and it won't collide with my solid building object (or any solid object, for that matter.) I've set up a collision event between that and my solidObjectParent object (parent object of all objects that have collisions with character object). From that, I have a buildingObjectParent (parent object of all objects that are buildings and can be entered) which is the child of the solidObjectParent (since it should collide with the character). I've tried setting up a collision event with the solidObjectParent, the buildingObejctParent, and the building objects themselves to no avail. I've watched two or three basic collision YouTube videos and have followed them step by step (or so I believe) and my collisions still aren't working. I'm using the same collision mask as the sprites for all of these objects. I have the 30 day trial, however I believe it's a trial of the full version so I'm not sure why that would be causing a problem. Version: IDE v.220.127.116.116 Runtime v.18.104.22.1684 Character: Solid Parent Object: Building Parent Object: Building Object: Building Sprite/Mask: Thanks for any help you can give!