MissingReferenceException Error is thrown after exiting Play mode if Volume component is shown in multiple Inspector windows

Steps to reproduce:

1. Open the attached project
2. Open the SampleScene
3. Select the Global Volume object in the Hierarchy window
4. Scroll the Inspector window that's docked to the right of the Game view all the way to the window's bottom
5. Enter and exit Play mode
6. Observe the Console window

Actual results: Error is thrown after each Play mode exit if Volume component is visible on multiple Inspector windows

Expected results: No errors or warnings are thrown when entering/exiting Play mode with Volume component being shown on multiple Inspector windows

Reproducible with versions: 6000.6.0b1, 6000.6.2f1, 6000.7.0b1, 6000.7.0b2, 7000.0.0a1

Not reproducible with versions: 6000.0.84f1, 6000.3.24f1, 6000.6.0a7

Tested on (OS): macOS 26.6.2

Notes:

• Issue occurs with Global and Local volumes
• Issue does not occur if no Volume objects are selected
• Issue only appears to occur when one of the Inspector windows are scrolled all the way to the bottom. Skipping Step 4 would not reproduce the issue. The most consistent way to reproduce the issue appears to have both Inspector windows scrolled all the way to the bottom