Are you using the stand alone FAM or the FAM in QB Accountant Desktop?  I am having problems using the FAM in QB Accountant Desktop.  It will not open and stay running.  I shuts down before accessing any FAM data.  I have reported it over and over again.  Tech support is no help and I haven't had any success in getting the case escalated.  I had many problems with similar QB, FAM, ProSeries issues last year.  It took them until 4/1/2020 to get them fixed.  I swore after the debacle last year that I would never use Intuit products again, but I caved in again this year.