Can’t get last map piece due to glitch! Chapter 4 forgotten bounty

No info exists on this so far:
So I was on the last part of chapter 4 and the NPC Makoru was in the mission and I could not turn in the last map piece from shrike island, it was taking up inventory space ,so I set it in the reforging bench, when I completed the mission cut scene happened, and Makoru was back in town, however my map piece is now gone and it does not exist anymore and I am unable to get a new one on the island so I cannot complete the quest : Forgotton bounty!
Very irritating lol