I have an edge case that highlights a need for improvement in the current version of the Photon UI. I discovered this by attempting to redeem a filament crate that was inside of an Enormous Freight Container.
Since crates can’t be opened while in containers, the following error is prompted:
That dialogue screen can be closed with the OK button, but the underlying crate opening screen can’t, since it lacks window controls. Pressing ESC brings up the game menu, rather than closing the current window.
The keyboard shortcut to close the active window does work, but if a user were unaware of that shortcut, they would have to close and restart the client before moving the crate to the hangar and redeeming.