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There has been serveral bug reports about this - the issue was introduced in the March 2025 update.
It has not been fixed yet, even in the May 2025 release.
The general recommendation is, if possible, downgrade to the Feb 2025 version.
Further reading:
- https://www.reddit.com/r/PowerBI/comments/1jzy67k/power_bi_desktop_error_an_unexpected_error/
- https://www.reddit.com/r/PowerBI/comments/1jpxvxa/february_2025_power_bi_desktop_download_file/?share_id=hPAx0gjqj7qi5XfzZEwow&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1
- https://community.fabric.microsoft.com/t5/Desktop/Error-Fetching-Data-for-this-Visual/td-p/4635446
Following the MS support team meeting with our DBA team, and after activating CPU AVX for the report server, all dashboards are operating finely. So, this is a hardware requirement on the user's side, and MS is not going to do anything in the next updated versions.
It's related to supporting the AVX feature by your server/local machine CPU:
https://learn.microsoft.com/en-us/power-bi/report-server/system-requirements