Unity Issue Tracker - Crash with various stack traces when exiting Play Mode after recompiling scripts

Fixed in 2021.1.X

Fixed in 2019.4.X, 2020.1.X, 2020.2.X

Votes

17

Found in

2019.3.0a3

2019.3.3f1

2019.4

2020.1

2020.2

Issue ID

1238859

Regression

Yes

Crash with various stack traces when exiting Play Mode after recompiling scripts

Mono

Apr 17, 2020

How to reproduce:
1. Open user-submitted project (Zombie.zip)
2. Open the lab Scene
3. Make sure Editor scripts are set to 'Recompile and Continue Playing' in Preferences and Enter Play Mode
4. Open UIManager.cs script
5. Edit the script and save it
6. Go back to the Editor(it should recompile the scripts)
7. Exit Play Mode

Expected result: the Editor does not crash
Actual result: the Editor crashes

Reproducible with:2020.2.0a21, 2020.2.0a11, 2020.1.3f1, 2020.1.0b9, 2019.4.8f1, 2019.3.13f1, 2019.3.0a3
Not reproducible with: 2018.4.23f1, 2019.3.0a2
Could not test with: 2017.4.40f1(project packages incompatible)

Notes:
May crash immediately upon recompiling
May take multiple tries to reproduce

Resolution Note (fix version 2021.1):

Fixed in 2021.1.0a1
Resolution Note (fix version 2020.2):

Fixed in 2020.2.0b9
Resolution Note (fix version 2020.1):

Fixed in 2020.1.11f1
Resolution Note (fix version 2019.4):

Fixed in 2019.4.17f1

Comments (2)

lassade

Sep 24, 2020 14:49

I didn't have this problem on Windows 7, only after upgrading to 10.

Set Editor scripts to "Recompile After Finished Playing", it works for me although quite inconvenient that I had all the work to make sure hot reloading was working to not use it
claytoncurmi

Sep 15, 2020 14:08

Please resolve this issue asap as it is impossible to work with it.

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