Unable To Convert Project From Godot 3 to Godot 4

Godot Version

Godot 4.3

Question

Hi all. So I was following the “Squash the Creeps” 3D tutorial from the documentation until I imported the project and encountered this:

A dialogue box appears onscreen and tells me that I have “three options”, yet there is no way to select these options – I have to use the task manager to exit out of this interface. Assuming this is a bug, is there some kind of workaround? Has anyone else encountered this?