Nav 2016-VLE Reverse with Gain/Loss

Dear All,

i post a payment journal with Exchange Gain/Loss. but when i want to reverse, it pop out the message: You cannot reverse Vendor Ledger Entry No. 325 because the entry has an associated Realized Gain/Loss entry.

i already:
1. Unapplied the Entries in VLE.
2. When click Reverse Transactions: Error Message Pop Out..

Please advice...Thank You all..