Works again! Was just a DotNet issue. winetricks was not able to install DotNet completely headless anymore. So we now have the workaround with xvfb in install2.sh, like we had for install.sh.
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Another test showed that the IDE worked natively on buster. Seems that we only have problems with the docker images.
Works again! Was just a DotNet issue. winetricks was not able to install DotNet completely headless anymore. So we now have the workaround with xvfb in install2.sh, like we had for install.sh.