How to reproduce:
1. Open the “IN-134379_UnityTMPBug” project
2. Open the “SampleScene”
3. In the Hierarchy, expand the “Canvas” then “SizeFitterLayoutGroup” objects
4. Select one of the “SizeFitterLayoutGroup” children
5. In the Inspector, TMP component, select the text field
6. Observe the size of the text field, in Scene view, while editing the text
Actual result: Text fields vertical size does not change with the font size
Expected result: Text field size follows the size of the font
Reproducible with: 6000.0.70f1, 6000.3.10f1, 6000.4.0b11, 6000.5.0a8
Reproducible on: Windows 11, macOS 26.3
Not reproducible on: No other environment tested