2 Necropolis Halls Chests issue

In the Chamber of the Unforged in the Necropolis Halls, there are 4 chests after the boss fight.
The unique chest and the other one work fine, but the other 2 side by side at the far end of the room NW aren't updating area progress.

As you can see in screenshot1, i have 14 out of 17 chests unlocked before opening them.

This value doesn't update after opening both of them as you can see in screenshot2.

I have a save game from before opening the 2 chests in case you need it, but can't attach it here for some obscure reason. Let me know if you need it and an alternate way of delivering it