CANNOT EXPAND VIEWS IN INVENTOR DRAWING TO FIND ASSEMBLY FILE

[matthew_hobbs1999]

When I try to expand a view in the model tree of an Inventor drawing by clicking the "+" sign, it doesn't show my assembly or part file under the view. I cannot turn off parts or change details in that assembly. It does not show my assembly or part file when I expand that view. Not sure how to fix this, and I have used this feature before. 

[matthew_hobbs1999]

Solved: Drawing Tree Doesn't Show Model - Autodesk Community - Inventor

This seems to be the most similar or identical issue I am having.

[Gabriel_Watson]

Have you tried an Inventor reset yet (please backup settings as also described below):
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-use-Invento...

[johnsonshiue]

Hi! This may be display setting related. Please go to Windows Display settings and select the recommended scale and resolution. Right-click on Inventor desktop icon -> Properties -> Compatibility -> Change High DPI settings -> uncheck both boxes.

Lastly, you may want to add a system variable (Control Panel -> System -> Advanced System Settings -> Environment Variables). Create "QT_AUTO_SCREEN_SCALE_FACTOR" and set it to 0. Restart Inventor.

Many thanks!