How to reproduce:
1. Open the “ReproProject.zip“ project
2. Open the “SceneStart“ scene
3. Enter the Play Mode
4. Wait until the “SceneEnd“ scene loads
5. In the Game view observe the green buttons

Expected result: The green do not clip the Game view
Actual result: The green buttons clip the Game view, or completely disappear

Reproducible with: 6000.0.46f1, 6000.1.0b14, 6000.2.0a8
Could not test with: 2022.1.0b1(ea0f0219deed), 2022.3.61f1 (Could not resolve compilation errors because of the difference in the API between versions)

Reproducible environment: macOS 15.3.1  (M4 Max), macOS 15.3.2 (M3 Pro) (Reporters)
Not reproducible environment: No other environment tested

Notes:
- Could not reproduce on a fresh project
- Could not build the project to test in an iOS devices, but does not reproduce with the Editors Simulator
- The green buttons are placed in the correct position but after a few manual UI refreshes (a few frames), then get positioned with the wrong value
- According to the reporter the screen width is correct for a few frames and after that, the reported screen width is incorrect (e.g. that screen width is 1080 (correct) and then 752 (not correct/scaled))