In VS2013 (with the latest NORMA build as of Jan 8th), it's throwing an error when I enable the relational view. Specifically:
Value cannot be null.
Parameter name: font
I've tried typing into the Fact Editor, copying objects from other models, opening older models, and they all throw the same error one way or another. The dialog box varies depending on what method was used, but the message is the same. You can drag Entity Types out from the toolbox, but when you go to set the reference mode in the Properties window the error is thrown. With Value Types, the error is thrown as soon as you try to set the data type. Fact Types seem to be unaffected; they can be entered via the Fact Editor or the Toolbox without incident.
Hydrogen is a light, odorless gas, which, given enough time, thinks about itself.