Steps to reproduce:
1. Open the “user’s attached project” or import the “Gem Hunter Match - 2D Sample Project” Asset into a freshly created project
2. Open the “Init” Scene
3. Enter Play Mode
4. Observe crash

Reproducible with versions: 6000.1.5f1, 6000.1.8f1, 6000.2.0b7
Not reproducible with versions: 6000.0.51f1, 6000.1.4f1
Couldn’t test with versions: 2021.3.53f1, 2022.3.63f1 (due to compiler errors)

Reproducible on: macOS 15.5 (M1 Max)
Not reproducible on: Windows 10

Notes:

Not reproducible in Standalone Player
The project needs to be freshly extracted before reproducing
Gem Hunter Match - 2D Sample Project: https://assetstore.unity.com/packages/essentials/tutorial-projects/gem-hunter-match-2d-sample-project-278941

First few lines of StackTrace:

#0  0x0000018a36470c in -[NSApplication endModalSession:]
#1  0x000001076033f0 in -[ProgressbarController hideWindow]
#2  0x00000107603ed8 in -[ProgressbarNotificationHandler handleClearNotification:]
#3  0x000001861c262c in __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__
#4  0x00000186251ce8 in ___CFXRegistrationPost_block_invoke