openHAB windows version 3.4.2 update is not working

The openHAB update powershell script: cd C:\openHAB
.\runtime\bin\update.ps1 Update-openHAB -OHVersion x.x.x is not working since a long time.
The cmd line version C:\openHAB2\runtime\bin\update.bat x.x.x was working so far but after the update to 3.4.2 the UI (http://localhost:8080) is not launched anymore, although the runtime is started in the karaf console.
Is there a known workaround?

Did you wait long enough to let openhab come up ?
Did you clear the cacge?
Any error in openhab.kog file?

The manual update as discribed here: Updgrade 2.4 to 2.5 on Windows 10 machine - #4 by Celaeno1 worked finaly. Is not satisfying though!

The userdate/chache didn’t exist.
I waited a long time.
The openhab.log has lots of errors, but the don’t tell me anything.

That is where the community might be able to help with.

Here is the log file:

For me also 3.4.2 update needed. To delete the cache 3 times and restarting the system few time till it run. I am using openhabian…I read a lot also on Reddit about this…so try clean cache several times and reboot the system

Problem aigain after update to 3.4.3. Openhab started but all things where undefined. I had to restore userdata folder to solve problem.