Scriptable generator crashes player on exit

Steps to reproduce:

1. Unzip and open the attached Unity project scriptable-generator-player-crash.zip
2. Build and run a standalone player with the Sine scene as the only included scene
3. A sine tone should be playing as soon as the player opens
4. Shut down the player

Actual results: 

An OS crash report opens after exiting the application. See attached stack trace.

Expected results: 

Nothing unexpected happens after exiting the application.

Reproducible with versions:

6000.3.6f1, 6000.4.0b6, 6000.5.0a7

Not reproducible with versions: 

Reproduces in all versions post 6000.3.0f1.

Can’t test with versions: 

Not relevant for versions pre 6.3.

Tested on (OS): 

macOS 26.2

Notes:

• Might also be the cause of [Internal link]