Reproduction steps:
1. Open the attached “IN-121827“ project
2. Open the “TestScene” Scene
3. In the Hierarchy, select the “GO1” GameObject
4. Multi-select the other two “GO#” GameObjects
5. Observe each GameObject’s NetworkTrasnsform component’s “Axis to Synchronize” settings

Expected result: The “Axis to Synchronize” settings are kept separate for each GameObject
Actual result: The “Axis to Synchronize” settings override to the last-selected GameObject’s setting

Reproducible with: 2.0.0, 2.6.0 (6000.0.61f1, 6000.2.10f1, 6000.3.0b9, 6000.4.0a4)
Not reproducible with: 1.14.1, 2.0.0-pre.4 (6000.0.61f1)

Reproducible environments: Windows 11 (by reporter), macOS 26.0.1
Not reproducible environments: No other environments tested