Since updating to runtime v18.104.22.1687 I've noticed somthing strange. (it also happens in 291..) when deactivating/activating instances, they go back to the layer they were depending on their Creation Order! instead of their order inside the layer, and I've found no way to control it. example: before deactivating: after deactivating: after activating: the same happens when using layer_add_instance(layer, inst), but what i found out was, it only happens when doing it in the same frame. if you do it 1 instance per frame it's fine (the instance moves to the back of the layer). I've attached some examples here feel free to mess with them: https://www.dropbox.com/s/ugi7uk0c59p7rmp/testlayerdepths.rar?dl=0 can anyone relate?