The Hero never shows in a Villain Mayhem Mission

[TimesSeven]

This has been a problem for a while... there are times when the hero doesn't show up AT ALL during a bank robbery mission.  I've encountered this quite a few times and my normal workarounds will fix it. If you have the Awakened "arrest" you, you'll wind up in jail. After breaking out, the hero will tend to arrive at the jail. The last few times was a complete no-show.  I literally roamed the map for ten minutes (having done all the side missions) and then sat in the vault until the time ran out. Never showed. Just sat there looking at Critical Mass like WTH?

 

Of course, I can't get a GM during that mission because of the limited time window. Saw on the help channel last week that someone else had the exact same issue. What's going on?