Open Can't add Bannerlord to my games using my steamkey

[Swingin_Ax]

Every time when I use my key here, it gives me a 404. The code I've bought from steam and is in my library. Why can't I use Mount and Blade II Bannerlord's key in my games?

 

[WOLFGEIST]

Did you figure this out? I don't even have a key to Bannerlord that I can find. The only key I have is from 2005 when I first bought M&B lol.