Dashboard error underlying reports work fine

Hi,

We had an issue this morning where the dashboards have gone blank saying "There was an issue loading one or more tiles" but when clicked on the tile, the report worked fine.

I have tried repinning the report tile to dashboard and it worked perfectly fine. I had to delete all the tiles and repin them to fix the issue.

Has anyone faced the same issue? Is there a reason or fix for it without rebuilding the whole Dashboard?

Thanks

Sushma