Yes. Same issue here. With the latest PB11 release, the Baron58 no longer starts. When starter is engaged, prop hardly moves... as if it doesn't have enough battery to crank starter.
Happy to see someone else is having the same issue as it proves it's not just me.
The "Start" light is illuminated on the annunciator panel but there is no mention in the manual of how to turn it off. This does seem to be a bug and I have reported it.