Hello,
I didn't find any issue about this problem, but it surely exist one:
When I import a model with inFusion and then try to export it to MSE, it raise an error.
In my case, the 'isWrite' instance variable of a FAMIXAccess is not initialized when importing MSE from inFusion. Then, it generate an error when trying to export this information.
The problem come from inFusion, and I don't know if someone is already looking at that? (tell me if I have to open an issue)