Has anyone had the "Working..." Message stay around on a portal dashbo

Has anyone had the "Working..." Message stay around on a portal dashboard, even after the page loads and looks fine? We just upgraded from 6.6.1 to 7.6, and for one of our dashboards this is happening (see attached). All of the other dashboards are fine. There are no errors in the logs at all. The 7.6 dashboard looks the same as the 6.6.1 dashboard, except that the Working message stays on 7.6....

Working Message Sticks.docx

OriginalPostID-123601

OriginalPostID-123601