2016.5 Advanced - yes similar issue though this customer is a bit of a challenge. They also have several 3rd parties - MAPADOC, IIG, Starship, Scanforce. I don't have any reason to suspect the enhancements. We also have problems where large orders get out of balance (qty shipped <> qty invoiced or similar). They have some very larger sales orders so this is a pressure point for them since re-keying or interrupting the warehouse takes them a lot of time.