I am still having the same problems as detailed here: FMPA license bug building/editing data separation, why?
Seems to be an issue with IPv6 and connection to the server. I have IPv6 turned off on my machine and still FMPA seems to find only the IPv6 or IPv4 address for the server depending on how FMPA feels at that moment. The launch center has issues with this. This is causing a lot of problems and the only fix is to open just one file at a time. Not great. There is also nothing graceful about the way the conflict is handled. All open files are closed. This means everything I was working on has to be established again. Costing me a lot of time.
steveromig advised a call to support. This was good but not very effective. Possibly I need to call again.