I'm not able to take a backup using snapshot, whether managed or not. The requirements check fails due to Open Base Dir saying it is enabled. I've asked server admins to disable it and have it listed in php's disabled functions. It still has a value in the local PHP setting, but according to them it's no longer enabled.
I've had issues with Snapshots completing before (due to size of backups) but never any problem getting it to start. Now I can't even use it after applying the update.
I have granted Support Access in the WPMU DEV Dashboard.