UI elements from a screen behind a pop-up can be hovered over with the mouse cursor

Opening a pop-up window (e.g. by opening the Friends List or locking the difficulty in a world and pressing “Apply Changes” in the World Options menu) over a UI screen will allow you to still hover over buttons from the screen behind the pop-up, despite another screen now taking priority over it. The elements aren’t interactable however, as clicking still only affects elements within the pop-up.

Steps to reproduce:

1. Open the pause menu while in a world.

2. Press the “Friends” button or its associated key bind to open the Friends List.

3. Move your mouse around the screen.

4. Observe whether elements from the screen behind get selected.

Expected result:

You couldn’t hover over elements from a screen behind a pop-up.

Actual result:

You can hover over elements from a screen behind a pop-up using the mouse cursor.