"Open a Silver Chest" Labyrinth challenge bugged, does not complete

After not receiving the completion on my initial playthrough of the labyrinths, I went back and confirmed today in both the "normal" (first ascendancy) labyrinth as well as in uber lab that I cannot get the "Open a Silver Chest" portion of the "Explore the Labyrinth" league challenge to complete by opening a silver chest.

I also confirmed that it was not triggered by a golden chest, a labyrinth trove, or the treasure chests at the end. I grabbed screenshots of the golden chest + finishing lab not triggering it confirmation but figured I'd hold off on those screenshots unless requested.

Edit: I'll put the links to the full size images below them since hard to see in the thumbs. Can also just right-click open in new tab for full size.

Edit2: Also went back and confirmed that it doesn't appear to be an issue with it completing but not displaying as completed in the menu, as my overall completion count shows 23 which matches the ones displayed in the list with green completion check mark when I unhide completed challenges.


https://i.imgur.com/dMgShnn.jpg


https://i.imgur.com/w02eA9a.jpg

It's poorly worded, but the intent should be to open the chest "behind a silver door".

Thank you for the clarification.

Yup, went through and opened an "Emperor's Vault" which was a chest behind a silver door, and completed the challenge. Appreciate the clarification and workaround!

Yeah I'm having the same issue. Can't complete this one even when I do actually open a silver chest.