Not letting me use leader cards in Gwent

[mstrcorbot3000]

Not letting me use leader cards in Gwent

I've not been able to use my leader card ability whenever I play Gwent. It's not disabled due to an opponent's leader ability, it just doesn't let me use it. There's a red icon where the leader button is and it won't give me the button prompt to activate it. Anyone else have this issue?

 

[Sunsibar]

But you do have a (unlocked) leader card in your actual deck? Can you browse leader cards in your card collection?

Could you post some screenshots?