Can't delete measure

Hey bhalicki ,

This error is actually a known regression in the November 2025 Desktop release. Several users have reported failures when deleting measures or columns due to a validation bug in the internal save-point engine — which is why you're seeing: TMSavePointValidation.cpp, line 422 VerifyProxyCreationAllowed

Workarounds

1) Delete the measure using TMDL: If your model is stored in the new TMDL folder format:

1. Enable TMDL folder format
   File → Options → Preview → “Store semantic model using TMDL folder format”
   Reference: Microsoft Docs – TMDL Overview

2. In the exported TMDL folder, go to
   \SemanticModel\Tables\[TableName]\measures.json

3. Remove the object representing your measure.

4. Save → reopen Power BI Desktop.
   
   

2) Use Model View: Deleting via Model view → Properties pane sometimes bypasses the save-point bug.

3) Tabular Editor 2 (Free Version): The Tabular Editor 2 is completely free and fully supports deleting measures. Once installed:

1. Open your PBIX → External Tools → Tabular Editor

2. Locate the measure

3. Delete → Save
   This bypasses the broken savepoint logic in Desktop.

Reference: Tabular Editor 2 is free & open source

4) Delete the measure using TMDL

If you are using the TMDL folder format:

1. Export to TMDL

2. Open: SemanticModel\Tables\[TableName]\measures.json

3. Remove the measure object

4. Save and reopen PBIX

References:

Work with TMDL view in Power BI Desktop 

Power BI Desktop project semantic model folder 

This strongly suggests a regression in the November 2025 build. Rolling back to October 2025 resolves the problem for most users, but may not be an option if you upgraded for another bug fix.

Best Regards,
Nasif Azam