Is the uploading of images not working? Or does WHYNOTDRS have a size limit I'm not seeing?

I recently "upgraded" the storage (a week ago) from a Google Compute Engine attached drive to a Google Cloud Storage bucket. In theory, it is supposed to be highly scalable, but obviously there must be some subtle misconfiguration that is causing intermittent failures, as I see uploads working for some users... I'll have to investigate more