Viewport issue/problem - Undesired toggling between camera and perspective

[voltron7]

Hello. Recently I been having problems in every scene, even new ones.

Example: I'm in a (V-ray) camera viewport. Select any object.

Results:
1. The view jumps to perspective viewport.
2. If I press F4, or select an object, it switches back to camera view.

It's as if max is telling the viewport to toggle between camera and perspective.

Anyway, I discovered this while setting up a Perspective match, but I'm not sure it's specific because it's happening in other scenes, too.

Thoughts?

Video driver?
Some max setting?
V-Ray5 setting?
Windows10 issue?


Thanks for any help it is really annoying and slowing down work.

Max2019
V-ray5
Win10
GeForce GTX970

[hermit.crab]

Could you record a video of the issue and post it here?

[voltron7]

Wow, so, seconds after I posted this issue, Nvidia notified me of an update for my driver.
I installed the update, opened a previously misbehaving scene, and it seems fixed, so far!

[voltron7]

Could you record a video of the issue and post it here?

I was going to, but it seems fixed and I don't want to revert now, thank you.

Edit: I will try to make a video because it is persistent. Thanks again.

Okay, sorry I forgot to restart the W/S after the update. It now seems stable.