Showing the Pixel information window before IPR starts breaks the VFB window and menus in Max

[Alex_M]

There's been a long standing issue with IPR. Starting IPR and then quickly holding the right mouse button inside the window (which brings up the Pixel information window) before IPR starts, breaks the VFB window.

Steps to reproduce:

1. Make sure you have an image already loaded inside the VFB window
2. Start IPR and then quickly right click and hold the right mouse button so that the Pixel information window appears before IPR rendering starts. Don't release the right mouse button until IPR starts
3. Release the right mouse button
4. The VFB window gets bugged and nothing inside the VFB window works anymore even after closing it and opening it again. Even the menu bar in 3ds Max stop working (File, Edit, Tools, Group etc.) with the only fix being closing Max.

[hermit.crab]

Thanks for the report. The issue is reproducible. I've logged it (internal bug-tracker id: VMAX-9643) for developer investigation.