I just went through this with Pro Series yesterday. Wasted 2 hours of my time with an agent who eventually said they will have to escalate to a level 2 support person who would get back to me (that has not happened yet). I was explaining that I believe this to be a system issue as it effects ALL my S-corps problem is when people report these problems the support agents have no info and can't even tell if their technical programmers are even working ion it. WASTES SO MUCH TIME for us and them.  

The stupid error message asks for  an NJ 500S to be attached which does not even apply to any of the returns I've done. 

Basically,  Pro Series released this program without checking for common errors is my opinion. If someone there tried to prepare a return to check they would likely have seen this. They need to have a message board that acknowledges system errors and post it so at least we know they are going to fix it.