Defeated Iron Citadel Boss - However, Map doesn't count as completed (can't move to adjacent map)

Hi GGG team,

Title says it all. I'll rewrite it as below just in case.

Issue: Defeated Iron Citadel Boss - However, Map doesn't count as completed (can't move to adjacent map node)

IGN : BengisKhan
Standard, Trade

FYI, some of the things that I've done before and during facing the boss
1. Portal to refresh my rarity charm (because who wouldn't :P)
2. Dropped the boss in his initial form to 0%

Few reference:

1. Killed the boss - With Loot
https://imgur.com/a/Mj8eevG

2. Killed the boss - Without Loot
https://imgur.com/a/HIrtZg8

3. Map Device says incomplete
https://imgur.com/a/kSWgYL6

4. Also, there's no more objective (mobs with icon) in the map right now, that I need to kill
https://imgur.com/a/cNznsa7

I've ensured that I am able to move to another nodes (prior to the iron citadel the map), but not the node that requires me to finished the iron citadel node.

Would you take a look at this, please? Much appreciated.

PS: Keep up the great work, huge Fan since PoE 1 CBT btw ;)