2020.1 a14 won't launch after closing (needs windows reboot every time to start)

Unity Engine
,
1

After closing the editor, it won’t start again. The Unity splash screen shows, and then goes back to the hub.

After rebooting windows, everything will work fine, until I close the editor. Then it will not open any projects in the a14 editor until I reboot my computer.

I think there is some kind of event not firing correctly when starting the editor for the second time. If I wipe my library folder, it does not get recreated (until reboot) either.

I’m using a personal license, and didn’t have this issue on any earlier 2020.1 alpha up to a12.

2

Hi,

Do you have latest hub version ? Last time I have similar situation with no latest hub.

BTW. 2020.1a14 is not usable with HDRP & RayTracing - when start rendering scene it slow down slow down … and crash :frowning:

3

I’m on Unity Hub 2.1.3. I just uninstalled it and downloaded the installer from the website which also installed 2.1.3, so it must be the latest. The problem still persists.

Edit
Fixed by deleting my “C:\ProgramData\Unity” folder. Not recommended.

4

This problem probably caused by [latest Nvidia drivers]( https://discussions.unity.com/t/738275 page-10#post-5184506). Previous driver will work fine, probably (Studio driver 441.12 is working fine for me, 441.28 - crash & project won’t load). Just don’t tweak “Bounces” parameter for ray-traced GI, it will always crash no matter the driver.

5

Yeah that’s a different issue, I experienced that too a while ago.

6

You probably needed to delete the Unity_lic.ulf file only, not the entire directory.

Pass the word if you see other people having the problem, please. I’m tired of posting this.

7

Renew your license. There is a problem with licenses becomming invalid. The worst about it is the you will only see this in the log file of the editor.
Unity needs to add a more user friendly error feedback than just closing the editor and reopening the hub.

8

The hub said my license was valid. The first thing I tried was to return my license and activate a new one, which didn’t help. That’s when I deleted the programdata folder because I noticed it contained a few cache directories.