Forum Discussion

charleshale's avatar
charleshale
Icon for Continued Contributor rankContinued Contributor
7 months ago
Solved

ADBC Bug

The known bug here  https://support.fabric.microsoft.com/known-issues/?product=Power%2520BI&active=true&fixed=true&sort=... appears to be orthogonal to the main problem with respect to this mquery er...
Need Help
v-menakakota's avatar
v-menakakota
Icon for Community Support rankCommunity Support
7 months ago

Hi charleshale ,

Thanks for reaching out to the Microsoft fabric community forum. 

 

We acknowledge that a related issue is listed under Known Issues however, the documented workaround does not fully resolve the ADBC assembly load error you are experiencing. The issue persists even after clearing cache and reinstalling Power BI Desktop, and reverting from GoogleBigQuery.Database([Implementation="2.0"]) is not a viable option due to functional differences in JSON handling.

 

We recommend opening a Microsoft support ticket so the issue can be investigated further as a potential product defect in the context of your specific environment.

 

Below is the link to help create Microsoft Support ticket:
How to create a Fabric and Power BI Support ticket - Power BI | Microsoft Learn

 

Best Regards, 
Community Support Team

  • charleshale's avatar
    charleshale
    Icon for Continued Contributor rankContinued Contributor
    7 months ago

    This a pure bug that happened in the Jan 2026 release related to the ADBC changes that applies to many users judging from the posts on reddit and fabric.   I can not penetrate past auto-support responses and wrong menu choices to get the bug submitted after following the instructions and spending an hour on it

    • charleshale's avatar
      charleshale
      Icon for Continued Contributor rankContinued Contributor
      7 months ago

      We have powerbi embedded and an F2 capacity and still can't get support without buying a support plan, which we can not even do on site.  

      • v-menakakota's avatar
        v-menakakota
        Icon for Community Support rankCommunity Support
        7 months ago

        Hi charleshale ,

        We understand this appears to be a product bug introduced with the January 2026 release, related to recent ADBC changes, and we recognize the challenges you’ve faced navigating support channels despite having Power BI Embedded and an F-series capacity.

         

        As a reference, you may review the following documentation, which outlines the current ADBC integration and is still in preview

        Arrow Database Connectivity (ADBC) driver for Power BI - Azure Databricks | Microsoft Learn

        While this document does not resolve the issue directly, it helps confirm the scope and maturity of the ADBC changes involved.

         

        Best Regards, 
        Community Support Team