@hmwillett has a great guide for uplifting dashboards from classic and getting the trackers to look (and work) right again:
The default grids on a dashboard use the Provider Model and whenever a one of the search field values changes, the BAQ is executed again.
If you go into Grid Model > Provider Model > BAQ Options > Where List are there any entries left behind? I’m curious if deleting those will make a difference to your error.
Do you see an event firing in the browser console (in debug mode)? or an ExecuteBAQ in the network panel?