*Steps to reproduce:*
# Create a new Unity project using Universal 3D template
# Create a new UI Document (Assets > Create > UI Toolkit > UI Document)
# Open the created UI Document
# Add a Label from Library to the Hierarchy in UI Builder window
# Rename the Label in the Hierarchy to any name and save
# Rename the Label in the Inspector of UI Builder to a different name and save
# Repeat steps 5 and 6 a few times
# Observe the Console window

*Actual results:* "NotSupportedException: An element can track properties on only one serializedObject at a time" error is thrown

*Expected results:* No errors are thrown

*Reproducible with versions:* 6000.2.0b1, 6000.2.0b4 

*Not reproducible with versions:* 6000.0.50f1, 6000.1.6f1, 6000.2.0a10 

*Tested on (OS):* macOS Silicon Sequoia 15.3

*Notes:*
* Seems to reproduce with all the components