How to reproduce:
1. Open the “FrameDebuggerTest.zip“ project
2. Open the “main“ Scene
3. Enter the Play Mode
4. Open and Enable the Frame Debug Window
5. Observe the Game view

Expected results: The Resolution Material is applied on a Render Texture displayed in the Game view
Actual results: The Game view is blank

Reproducible in: 2021.3.22f1, 2021.3.38f1
Not reproducible in: 2021.3.21f1, 2022.3.27f1, 2023.2.20f1, 6000.0.0f1

Reproduced on: Windows 11 Pro (23H2)
Not reproduced on: No other environment tested

Note: The issue is not reproducible if the "Use MSAA" or "Bind" checkboxes on the “Main Camera” GameObject in the “FrameDebuggerTest” script are disabled before entering Play Mode