“UnityException: GetInvalidFilenameChars” errors are thrown, and the Overlay Save Preset button becomes unusable when entering Play Mode with a shortcut while Overlay Save Preset window is opened

Steps to reproduce:

1. Create a new Unity project
2. Open the Overlay menu (burger button in the Scene View)
3. Click on the "Default" dropdown
4. Click the "Save Preset..." button
5. Enter Play Mode using the shortcut (command + p/control + p)
6. Observe the Console window
7. Repeat steps 3 and 4
8. Observe the Overlays menu

Actual results: “UnityException: GetInvalidFilenameChars” errors are thrown, and the "Save Preset..." button no longer works

Expected results: No errors are thrown

Reproducible with versions: 6000.0.58f1, 6000.2.6f1, 6000.3.0b2

Can’t test with versions: 2022.3.66f1 (no Overlays feature)

Tested on (OS): Ubuntu 24.04, MacOS Silicon Sequoia 15.6.1