NX "UsedBy..." is automatically added to the comment for an expression created by User Defined Features (UDF)

After inserting an User Defined Feature (UDF) and changing the parameter, "UsedBy..." is added to the comment line in Expressions dialog. Is this the expected behavior?

Reproduced Steps:

1. Create an UDF (Menu > Tools > Parts and Features > User Defined Feature > Wizard...)

*** For details on creating UDF, refer to the technical documentation listed in "NOTE/REFERENCES".

2. Insert the UDF (Menu > Tools > Parts and Features > User Defined Feature > Insert...)

***At the time of initial input, comments will not be added.

3. Double-click the input UDF and change the parameter value

4. Confirm a comment for the expression( Menu > Tools > Utilities > Expressions...)

*** You can find that "UsedBy..." is written as the comments.

This behavior is NX bug that only occurs on NX 2206 and NX 2306 Series, and will be fixed in the NX 2406 Series.

Workaround : You can manually change it (make it blank) from the expression dialog. However, the next time you edit/change the UDF parameter, "Used By..." will be added again. This does not have any negative impact on others, so you can safely ignore it.

User Defined Feature(UDF):

https://docs.sw.siemens.com/en-US/doc/209349590/PL20221117716122093.modeling/udf_udf_create

***Please refer to PL8757584 for Japanese article.