Open a model .txp file and it gets the error:
"Unexpected Error During Model Loading!"
Perform a Test Model and a Repair Model:
First, enable 'Expert Mode' by going to the 'Settings' Menu | Options | General | check mark ‘Expert Mode’ | and click Apply and OK.
Next, go to the 'Window' Menu | and click ‘Application View’ (if it's not already open).
Right-click the model in the ‘Application View’ window, and use Test Model and Repair Model functions. This may be able to locate the inconsistencies and delete them, so the model can be viewed again, and the errors fixed where possible.