How do you complete tier 2 maps?

I've full cleared a few T2 maps, one being rare and the others blue.

full cleared, 0 monsters remain on all of them and it still says 0/10 for the progress.

I looked around each map to make sure there wasn't a hidden boss or something and couldn't ever find it.

I had no issues completing the tier 1's so I don't know what's going on. What am I missing here please?

It is working for me, so I am not sure what the issue is. Just two possibilities that come to my mind:
- Is it a tower map? If yes, you need to activate the tower on the top. You go up the stairs, over the bridge and click on the thingy.
- Are you sure you are using Tier 2 waystones?