Whenever you activate the column "OS Version" in a computer group (NOT All Computers), the Explorer returns a DB error.
The issue re-occours, if you try to refresh the view to the affected Computer group.
DB error: incorrect SQL syntax [CMM000193]
Client Automation 14.5
This is a known issue and we have test fix for this. Please open a issue with support and request T55V214.caz .