Installation extension as xar does not work

Hey,

I am trying to install an extension as a xar. The import itself works but the extension ist not installed afterwards. I am facing the issue on 17.10.2 while running xwiki in a docker container. I tried the installation with the same extension on different instances with different xwiki version and with/without internet connection and that worked as intended.

Do you have any suggestions what could cause this behavior?
Any help would be appreciated

Hello, did you check the xwiki logs?

Thanks