UCB Builds failing today only

Since today all our UCB builds are failing due to an internal cloud build error which then says it can be restarted it needed and then put on an hour cool down, very irritating.

Normally restarting a build fixes those errors but so far we have had 3 in a row today with hour cool downs in between.

Is anyone else experiencing these problems?

EDIT:

Log:

Running Prebuild steps
In quiet period, build will start momentarily…
Agent pid 1281
All identities removed.
Removing bvr
Successfully uninstalled bvr-1.2.12
Building native extensions. This could take a while…
done.
bvr 1.4.1
bvr-api 0.2.7
! prebuildstatus failed. ! platform service error: An internal Unity Cloud Build error has occurred (authentication failure). The Unity Cloud Build team is addressing this issue, and this build can be restarted if needed.
ERROR: prebuildstatus failed!
ERROR: pre-build step failed to setup environment
Finished: FAILURE

There’s no sign at the moment of any persistent internal issues - if you send me a direct message I can check out that project, but otherwise it should recur. (We’re working on making that sporadic internal authentication issue go away, in the meantime, and hopefully it should become rarer in the coming weeks.)

What do you mean “There’s no sign at the moment of any persistent internal issue”

Cloud builds have been failing miserably for random reasons (shaders, random network time outs, etc.)

Sorry not to have been clear - there are a few cases that can cause some builds to fail (which the team are working on!) but nothing causing an overall system outage. If you have a project that’s repeatedly hitting shader errors or timeouts please send me a direct message and I’ll help check it out.