Bug Hub no longer opening Unity (existing projects or new ones)

I'm on Hub 3.4.2, all of a sudden I'm no longer able to open my projects. (Windows 10)

The Hub shows a spinner by the project name but then stops. Although 'modified' shows a few seconds ago, the Editor doesn't actually open.

The logs showthis as the last line:

{"timestamp":"2023-06-05T11:19:41.890Z","level":"info","moduleName":"LaunchProcess","message":"[ 'child process exited with code 0' ]"}

I checked my license and it's still active (it's due to end in 4 days and the renweal page tells me I can't do a renewal until it's expired. Log shows "Successfully checked for entitlements request" so I'm assuming it's still ok.

Anyone have any idea what's going on and what I can do to fix it? I really need to get some work done!

 

does editor log have any more info?
https://docs.unity3d.com/Manual/LogFiles.html

does running hub as administrator help?

sometimes removing license from hub, and adding again has helped too.

 

Thanks @mgear

Just managed to solve it. As you suggested, it was a licensing issue.

I'm on the Educator plan and although the page does say that you won't be able to renew until after it expires, I just gave it a go and the site did generate a new key. I added that in the hub and all's fine again.

Lesson of the story is expect odd things to happen as you get close to the end of the license period (even if the hub says your license is active)

 

I just upgraded my license (company was later renewing it) and now, my HUB won't open any project, but in task manager, my hub 3.4.2 runs at 87%.... forever

 

I did that... even removed hub, rebooted, added hub.
even deleted the license file, and redid the "add" license in the hub, activate with key. still no go

 

check the hub & editor log files, if any info

 

I should have come back and posted my resolution. I returned the license. closed HUB and restarted the computer (this was after doing all the find and remove stuff/reinstall). I opened Hub aggain and had to add the license. Somewhere in a registery probably, I Ibelieve it still tried to use my "personal" license even though I did an add for the Pro license. WHen I deleted the old Key, restarted the Hub, it generated a new key. It wasn't until I "returned" the supposed Pro key and did the whole restart, that when I opened HUB, it did NOT generate a key until AFTER I added a new one. (where previously if I deleted the key, when you opened HUB, it generated a key before I added my Pro key)