Forum Discussion
Power BI Report Server January 2026 – msmdsrv restarts, SQLDmpr files
Hi JacksonWearne ,
We experienced the same issue after upgrading to the January 2026 Power BI Report Server release (msmdsrv restarts and continuous SQLDmpr dump generation).
We opened a support case with Microsoft, and they confirmed this is a known issue in this release. The product team is currently working on a fix.
Temporary Workaround (from Microsoft Support)
Until a fixed build is released, Microsoft advised deleting the generated mini dump files to prevent disk exhaustion:
Default path:
C:\Program Files\Microsoft Power BI Report Server\PBIRS\LogFilesDelete files ending with:
.mdmpThis is only a temporary mitigation and does not resolve the root cause.
You can monitor the official PBIRS changelog for updates:
https://learn.microsoft.com/power-bi/report-server/changelog
If this response was helpful, please accept it as a solution and give kudos to support other community members
Hi JacksonWearne ,
If the issue persists after isolating the report and testing the above steps, this may indicate an Analysis Services engine level issue. In that case, Microsoft would need to review the generated dump files for deeper investigation.
If you have a Power BI Pro license (or your organization has a valid support plan), you should be able to raise a support ticket directly using the official process here:
https://learn.microsoft.com/en-us/power-bi/support/create-support-ticket
Even if you personally don’t have access to create a support ticket, you may want to escalate internally to your Global Admin, as they can raise a support request on your behalf.
Hi JacksonWearne ,
Could you please confirm if the issue has been resolved after raising a support case? If a solution has been found, it would be greatly appreciated if you could share your insights with the community. This would be helpful for other members who may encounter similar issues.
Thank you for your understanding and assistance.