I sent in a new festerma with fewer clouds, no manned acks at factories hoping it would be added before this arena came up.
I overdosed on clouds the limit is 900 and I had 992 in there, seems like tracking that much stuff and the MA server forgets about certain destroyed or damaged objects and stops repairing them. the problem seems to happen only when 500+ people are online but once damaged those forgotten objects stay down for the duration that the map is up.