Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/TMP_PreferredSize/Scene_TMP-PreferredSize.unity” Scene
3. Select “Canvas > Text {TMP} - Vertical Fit: Preferred” in Hierarchy
4. In Inspector, under “TextMeshPro - Text {UI}” in the Text Input field change the tag of <size=24> to <size=16>
5. Observe how “Rank 99” is shown in the Scene view
6. Change <size=17> or other higher number (Value which reproduces this varies from one PC to another)
7. Observe the Scene view

Expected result: Text “Rank 99“ is present
Actual result: Text “Rank“ is present

Reproducible with: 6000.0.40f1, 6000.1.0b8, 6000.2.0a5
Could not test with: TMP 3.0.9 (2022.3.59f1)

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Notes:
- Reproducible when Vertical Fit is set to “Prefered”
- Reproducible with size = 24 when Vertical Fit is set to “Unconstrained“
- Content Size Fitter might be calculating size incorrectly