Phantom Lines created in Ship Confirm Process

Hello, we recently upgrade to JDE 9.2.  Since we upgraded, I have seen occasions where an item is ship confirmed complete, but a line is split off (so for example if the line is 1, then it ship confirms line 1.000 and creates a line 1.100 at a last status/Next status 914/540 with zero in all of the quantity fields on the line.  The line type is S.  Unfortunately the line gets added to the invoice but remains open and keeps getting picked up in invoice processing.  The only pattern I see is the same few items, and they are