XML preview broken in default configuration [was #33570]
The location of the XSLT file for transforming TEI in the preview tqab ob the XML editor has changed. This was: https://raw.githubusercontent.com/TEIC/Stylesheets/master/html/html.xsl and seems to be moved to https://raw.githubusercontent.com/TEIC/Stylesheets/released/html/html.xsl due to a renaming of the main branch. Fix is to change the URL for next lab release and create a troubleshooting entry for this release.