The (GWT) upload-by-url whitelist has only a few items (instead of dozens of GLAM related domains):
As a consequence all GLAM using Beta (incubation stage) are stuck in their respective upload projects.
This situation is already many days old. It would be really good to have a service back to normal ASAP (for example Monday CET) so GLAM employees can continue their work. Please rollback the problematic commit(s).