Hmm. That is really weird. Never been reported such a problem before.
I think it could be related to some type added in the Preferred Types Editor that could be causing this (even though it shouldn’t).
Can you please try “Reset” the Preferred Types to their default (Tools/ParadoxNotion/FlowCanvas/Preferred Types Editor -> Reset)?
Also, what version of Unity does this happen?
If you want, please send me a direct email to support_AT_paradoxnotion.com with the log file so that I can check this out, as well as we can solve the problem.
Gavalakis
