Hierarchy V2 Unable to Find Style warnings are thrown when performing Replace Prefab action while in using Full screen Hierarchy window in Play mode

Steps to reproduce:

1. Open the attached project
2. Open the SampleScene
3. Double-click on the Hierarchy window tab to enter full-screen mode
4. Enter Play mode
5. Select GameObject
6. Right-click and select Prefab -> Replace.. option
7. Observe the console window

Actual results: "Unable to find style" warnings are thrown after performing the action. 

Expected results: No warnings or errors are thrown when performing the action

 

Reproducible with versions: 6000.3.0a2, 6000.3.0a6

Can’t test with versions: 6000.0.56f1, 6000.1.16f1, 6000.2.1f1, 6000.3.0a1 (Hierarchy V2 not available)

 

Reproducible with (OS): macOS 15.6.1, Ubuntu 24.04

Notes:

• The issue does not occur when using Hierarchy V1