Power BI Reports and Dashboards are stable since the front end does not have any calculations. Most frequent reasons why stable, well-functioning Dashboards start giving errors are listed below.

1. Power BI is resource (memory & computing capacity) hungry. Large datasets demand more memory and can be a reason for Power BI Dashboard not updating fast.

2. Non-optimized queries take too long to run or use too much memory and cause Power BI to crash or produce errors.

3. Sometimes, the issue might be with the specific Power BI file (PBIX). In such cases, try to open the file on a different system or reinstall the software.

4. If the visual involves complex calculations that are consuming more memory than the configured limit, it can lead to errors.

5. The third-party visuals used in the file is no more available.

6. The data source file has errors.