Sales Order Line - Error when cancel delivered remainder

Hi All, 

I face error when try to perform "Deliver Remainder" -> "Cancel Quantity". 

This error show out.

I already check line quantity and realize the Delivered Remaining quantity is weird. 

SO Line Order Qty : 3280

Delivered : 3290.12

Deliver Remaining Qty :   3295.88 ( Which is wrong)

I also checked. No open Production Order, Output Order or Picking List for this SO line. 

Appreciate if anyone who can help to provide some clues.