legendary chest

[uno2006due]

in an event I won 2 legendary chests, they were added to my account (I see them in the list)
They are not in the Chests menu.
Where can they be opened?
I also have skill chests, which cannot be opened

[uno2006due]

I found the DH5 game on another service like Steam, and played it to see if it was like it was on Steam.
The game has many features that are not available on Steam, it is not abandoned and, for example, it has a calendar of daily rewards for the entire month of January.
The legendary chests are in the chests section and can be opened, along with many other types of chests that are not available here on the Steam game.
It's here on Steam, which for some reason isn't updated and has several bugs. For example, here on Steam it allows me to win legendary chests, but then I can't open them because they aren't there in the chests section. Stupid, right?
Why keep a game on the list in these conditions is unclear.