IPR and Viewport bug

[Dmitriytn]

Hey!

Very strange bug happens to me while CPU IPR is running.
Have a look: https://www.dropbox.com/s/6q5muipdyq...10-24.mp4?dl=0

Firstly it lags when you move the object and then suddenly the object in the viewport stops moving completely, but the gizmo moves.
If I save the file and open the object will appear where the gizmo been left.

Is it VRay bug or 3dsMax? I tried 2020 and 2021, both the same. Also tried the latest nightlies and stable version, same same.

[hermit.crab]

Can't seem to reproduce the issue. Does it happen on every scene? Does it happen without IPR? Could you attach the scene here?

[hermit.crab]

Seems like you've already addressed the issue to some of my colleagues. The issue is logged (internal bug-tracker id: VMAX-10232) for developer analysis.