We have defined a site wide default presentation for our moodle site. Sometimes, this presentation is not available in the bigbluebutton meeting session.
BBB log file contains
o.b.p.PresentationUrlDownloadService - Invalid HTTP response= for url=https://XXXXXXXXX/pluginfile.php/1/mod_bigbluebuttonbn/presentationdefault/ef6ca87fcc0b248045facd40f4c964aa/default-presentation.pdf with meeting[9703c58d734d2b8c1b8f8a84f37a02c16dd920ac-1620381261798]
We have one teacher that triggers this bug in nearly every lesson and I was unable to reproduce it. Other teachers see this issue randomly.
Do you have any hint on how to do further debugging what's going on?