SEP blocking printers scanning UDP ports

We have several HP all-in-one printers that SEP is blocking for 600 seconds due to UDP port scans.  The ports are all high numbered ports...>50000.  We are running SEP 12.1.6, Windows 7 client.  I've seen other posts that indicate this was a known issue but was corrected in 12.1.5.  Log sample attached.  Any ideas??