Yes, the SB servers have been pretty flaky lately the last month or two, due to a handful of problems that I don't really understand that well, not being a systems admin myself. There have been a couple of upgrades happening, some changes in policy regarding large file uploads, and a few server restarts. Some of this stuff is under our control, some of it is on the side of the datacenter which hosts ScubaBoard. Point is, we're aware of it, and we're working on it, but it's complicated.
Our primary sysadmin is hard at work on all this, and I'm very grateful for his diligence. Of course, he has his own real life to take care of as well, and nobody is available 24/7. Hopefully things will be a little more reliable soon.