As of version 17.1 beta, FlexSim does not properly allow tree items to be renamed via the "More Properties" window. Steps to reproduce this are:
- Create a blank model
- Drag a source into the model
- Switch to tree view
- Click on the source
- Under the Quick Properties menu, click "More Properties"
- In the properties window that opened, change the name of the source to something different
- Click OK
Note that renaming directly via the tree, or via the name field in the quick properties window does still work properly, however.
This bug was first reported to dev@flexsim.com on 5/26/2016.