Try this work-around...
Open the AC12 file that has the Model Views in AC13. Then export out the MVs to an .XML file to be imported into the new AC13 file that you want.
David Larrew, AIA, GDLA, GSRC
Architectural Technology Specialist
a r c h i S O L U T I O N S
WIN7-10/ OSX 10.15.7
AC 5.1-25 USA