Crash in playblack with more than 1 viewport panel

[vcandelam]

Describe the bug
We are getting constant crashes when trying to work with more than 1 viewport panel opened. We have narrowed the bug to having textures loaded and having them enabled in one panel but not in the other. At a certain point when working either transforming maya objects or usd objects it crashes, it also seems like even though the textures don't change it is trying to refresh them

Steps to reproduce

• Sublayer a USD file, preferably with textures. Using an ACES colorspace in the viewport makes this more evident since you get the: "Could not find a UsdUVTexture shader that outputs to working color space ACES - ACEScg" error
• Duplicate the viewport panel
• Animate, play, move either a maya object (like a Sphere) or a usd object
• Also try to switch the panel layout
  Expected behavior
  Not crash

Attachments
MayaCrashLog231019.1620.log

maya_crash_report.mp4

Specs (if applicable):

• Windows 10 Pro 22H2
• Maya 2024.1
• MayaUSD 25.0
• Pixar USD 22.1

Additional context
Add any other context about the problem here.

[maya-usd-git-sync]

Issue synced internally to EMSUSD-836