How to reproduce:
1. Open the attached “UIToolkitLabelTest.zip“ project
2. Open the EditorTestLabel window (Window → EditorTestLabel)
3. Observe the window
Actual result: Line 70 is partially displayed and the subsequent lines are blank
Expected result: All 200 lines can be seen
Reproducible with: 6000.3.0a5 (f9a1fab5607a), 6000.3.5f1, 6000.4.0b5, 6000.5.0a5
Not reproducible with: 6000.0.66f1, 6000.3.0a4
Reproducible on: MacOS Sequoia 15.7.3 (M1 Max)
Not reproducible on: No other environments tested
Notes:
- Does not reproduce when Editor Text Generation Type is set to Standard (Preferences → General)
- The Advanced Text Generator option in Project Settings → UI Toolkit has no impact on the bug