The "Game" tab gets broken/blank when switching editor tabs.

### Tested versions

v4.6.1.rc1.official [7bfffc846]

### System information

w11

### Issue description

> Please watch the video.
> 1. I run the project.
> 2. I pause the project.
> 3. I switch to the 2D editor.
> 4. I switch back to the "Game" tab.
> 5. The "Game" view is now blank/empty. I have to select a node in the Scene Tree to restore the visualization.

https://youtu.be/f1st1FP9rlY

### Steps to reproduce

See the video

### Minimal reproduction project (MRP)

...