How to reproduce:
1. Open the “Editor_SubScene_Exit_Freeze“ project
2. Open the “SampleScene”
3. Enable the “SubScene” in the Hierarchy
4. Enter Play Mode
5. Exit Play Mode
6. Repeat steps 4-5 at least 3 more times
7. Exit the Editor

Expected result: Editor exits successfully
Actual result: on the exit window Editor hangs on "Application.Shutdown.CleanupMono"

Reproduced with: 1.0.8 (2022.3.1f1), 1.0.10 (2022.3.1f1)

Reproduced on: Windows 11

Notes:
1. Not reproducible when “SubScene” is disabled
2. To consistently reproduce, the “Library” folder should be deleted after closing the project every time
3. Message logged to the Console when entering Play Mode for the first time:

{noformat}Leak Detected : Persistent allocates 24 individual allocations. To find out more please enable 'Jobs/LeakDetection/Full StackTraces' and reproduce the leak again.{noformat}