Try putting this in the other encryption forum. (the one for EPO-managed FDE)
Good suggestion but I resolved my problem....at least a band-aid. I would have posted this on ePO Managed but I have MEE Manager v188.8.131.52 (FDE) implemented. I am only deploying/reporting through ePO.
At the Drive Check query I changed the Sort by: from 'Value (Ascending)' to 'Label (A-Z)'. I ran the query successfully. Seems to be stable now. I wonder if this is due to fact it is ePO 4.5 instead of 4. I will put in a ticket to McAfee Support if there are any further problems.