I have been slowly moving my characters from alliance to horde over the last number of months (also realm transferred). I never had any issues with any character until my priest. After transfer, the WoW armory has not kept record of my dungeons scores from before the transfer. Only new runs after transfer are being kept. They were not able to fix the issue via in game ticket and suggested a post here. I need my armory updated to reflect my previous M+ instance finished before the transfer.