PBIRS Sep 2026 Bug? Publisher Role Users Cannot View Reports
Hi everyone, I recently upgraded our Power BI Report Server from the May 2026 release to the September 2026 release, and I encountered a critical change regarding user roles and permissions. The Issue: Prior to this update, users who only had the "Publisher" role on a dashboard or folder could successfully view the reports. However, immediately after upgrading to the Sep 2026 version, these users can no longer view their reports and are getting the following error message when trying to access them: "User permissions error: You do not have permission for this operation. Contact your administrator to obtain the necessary permissions." The Workaround: We found that explicitly adding the "Browser" role alongside the "Publisher" role resolves the issue. Since doing this manually for hundreds of dashboards and users was not feasible, I wrote a custom PowerShell script using the native PBIRS REST API to recursively scan the server and automatically grant the "Browser" role to any user who only had the "Publisher" role. My Questions for the Community: - Has anyone else experienced this exact issue after upgrading to the September 2026 release? - Is this an intentional security architecture change by Microsoft in this release, or is it a bug? Thanks in advance for your insights.the limitation of the description of dashboards in 512 characters
Good day to everyone. I am very interested in one question. There is a Description field in the Report Server when managing the dashboard. The default limit is 512 characters. Is it possible to make the field size bigger? In the Report Server database itself, you can change the column type to nvarchar(4000). But in the Power BI interface, the Report Server still does not allow you to enter more than 512 characters. Please help with this issue, a solution is very much needed.
Failed to connect to AS
I currently have a server running PBIRS Version 1.25.9558.32914 (January 2026), and I'm experiencing this type of error on several dashboards during automatic refreshes. " Failed to connect to AS " What could be the problem? The server resources aren't overloaded, as I've monitored the CPU and RAM usage during these refreshes. What can I check, given that this is happening so frequently?
Usage Metrics Report - Page Views not being recorded
In both the old and new usage metrics report provided by power bi, Page Views almost never get recorded even though Report Opens are still being recorded and we know there is large traffic to these reports. These are internal reports for use by staff. Any ideas what might be causing this and/or there is a solution.
Error related to data refresh in file: tmmdmodeltm.cpp
Hi, I have developed my report locally and refreshed data with no errors and also no errors has speen spotted anywhere in the report locally. Now im publishing the report to server. Tried to refresh the data and got an error related to data refresh in server. Has anyone faced similar problem? "An error has occurred. Several errors occured during data refresh. Please try again later or contact your administrator. [0] -1056964608: An unexpected error occurred (file 'tmmdmodeltm.cpp', line 7611, function 'MDModelTM::IsAttributeHierarchyQueryable'). [1] -1055129594: The current operation was cancelled because another operation in the transaction failed." We are using version: Version1.19.8779.19175(January 2024). Could someone help me out, what this file does or what this error-message refers to? Thanks!Exporting a matrix visualization layout to Excel
Could you tell me if it's possible to export not only the internal hierarchy data from the "Matrix" visualization, but also the values from the rows in the upper hierarchy? For example, in this example, three rows are exported. Is it possible to get a row with the totals for Workshop 1 and the entire production in Excel? The Power BI cloud service supports exporting by visualization layout, but Report Server doesn't have this feature. How can I get this functionality? Are there plans to add export by visualization layout in Report Server updates?
Error when saving to the Power BI Report Server
Hi all, I have Power BI Desktop RS and Power BI Report Server installed. I now have version September 2025, but I also removed everything and installed May 2025. I have an issue when I want to save from PBI RS desktop or Upload in the Report server a new empty Power BI file. This is what I got when I save the report from the client to the server (localhost): I do see the folders, but unable to save my report. And this is what I got when I upload a PBI file to the reportserver: I have checked the logs and got the following errors: The remote server returned an error: (403) Forbidden.| RequestID = s_818e2464-bf36-4980-b55a-c3428d883fd1 2025-11-12 13:40:02.6925|INFO|7|Sending response. Response code %USER% 422 Throwing Microsoft.ReportingServices.Diagnostics.Utilities.AccessDeniedException: , Microsoft.ReportingServices.Diagnostics.Utilities.AccessDeniedException: The permissions granted to user %USER% are insufficient for performing this operation.;| RequestID = s_1e5f76c1-652a-4b06-9b86-7ad7d79a1f0d I am sure my authorization is correct. Can anyone please help me with this?
