If a screen proxy is in a collection which is in another collection, then its transition_url / focus_url / receiver_url properties are malformed, and the code to detect them in monarch.lua register_proxy() won't detect them.
To reproduce:
Create a collection file called e.g. advanced_parent in folder example/advanced
Add advanced.collection to the new collection
Set advanced_parent.collection as the main collection in game.project
(release 4.1.0)
If a screen proxy is in a collection which is in another collection, then its transition_url / focus_url / receiver_url properties are malformed, and the code to detect them in monarch.lua register_proxy() won't detect them.
To reproduce: