Just an FYI…I was running into this on the Supplier Tracker - version 10.1.6.xx
Found an answerbook on EpicCare which says this is a known bug scheduled to be fixed in 10.2.xx
The answerbook also suggests a workaround- verify Primary Browse is checked in the dashboard filter - which didn’t work in may case.
but… I did finally manage to get it working by trial and error - switching multiple, different settings back & forth in both the dashboard and the custom forms sheet wizard.