Tumble stopped working correctly

Hello Community,

Newbie here. I am attempting a self guided crash course on a trial. I was making progress when my controls started working improperly. First the MMB+Drag no longer panned my assembly in the view window. Then, the LMB+drag would pan my assembly, but would no longer “tumble”. The assembly will only move in x and y. I can no longer rotate the model. I have no idea why. More importantly I do not know how to fix it. Any suggestions?

First thing to check is the preferences here, and reset everything to defaults-

Thank you Matt.

Yesterday I did go through the process of resetting all Hotkey settings to default. It did not resolve the issue, so I closed the program, restarted and it was still not working properly. I reset to default again, closed the program, shut down the computer, restarted both and it still, no dice. I rinsed and repeated like a crazy person to no avail. This morning I fired everything up and voila, hotkey functionality is restored. Thank you for confirming that I was barking up the right tree. I look forward to getting back to my exploration of KeyShot after yesterday’s setback!