[Karellen]

Well, I don't know what could be the cause. It should just work. Have you tried any other skin? Which ones?

Let's start off with a Debug Log which captures an Update Library. Quick instructions...

1. Enable Debugging mode. Go to Settings>System Settings>Logging and it should be the first option
   
2. Restart Kodi
   
3. Replicate the problem.
   
4. Upload the log to Kodi Paste Site manually or use the Kodi Logfile Uploader. (wiki) With either method post the link back here.
   

Note: Full logs only. No partial or redacted logs

ps. No need to ask the question in another thread. I can move this thread where ever you want.