As of this morning, Antoine has the beta clusteri tracking the master branch of Mediawiki in git via puppet.
Video files may be uploaded via UploadWizard with reasonable error/status messages.
Video files are being queued for handling by TMH.
However, we still don't have that queue being processed by TMH yet. We expect to have that aspect configured correctly in the very near future, probably early next week.
Many thanks to Antoine for rebuilding the beta labs cluster to emulate much more closely the production environment. This is a big investment that will pay off for a long time.
-Chris