Missing Keys?

[Horror]

I have 5 keys. my coop partner has 4 keys. We have been playing online together 100%, our mission completions are exactly identical, and we bought all Vulgrim available keys, yet we have different amounts.

Ironically, I had one Trickster door marked as open, and my partner did not. It took 2 keys, which is why my partner went from 6 to 4, but I stayed at 5 because it was already open.

Does anyone know why this might happen? The game says I found 21 keys total, but if I could the 4 Vulgrim keys, plus the 15 from missions so far, that only comes to 19 keys.

[LuigiTico90]

I also have that doubt I need keys

[thestealthbox]

Sometimes keys are only gathered from one person, look at the door after you pass Vulgrim and see which one of the diamonds are shining. The missing ones are the levels that one of you failed to open the trickster doors. Go back and try to open them again if you are not lazy. Also in one of the patches they took one of the keys from Vulgrim and gave it another level so maybe it's a bug that it shows excess keys? Hope this helps, good luck!

[Horror]

Okay we found the issue. We weren't missing any keys from levels, however, there is a key reward in the arena I got, that he did not buy yet. If anyone else is having this problem, check arena rewards!