Can't play wild games with wild deck

I rarely play standard game these days. Yet for some reason, frequently, the game keep saying that my wild deck is not valid for the current game mode, as if it was running my wild deck in standard mode. It got to the point that it becomes annoying for me which is why I’m posting a bug report here. Keep it up Hearthstone, the harder you push, the sooner I’ll break away.

Couldn’t figure out how to post picture on your stupid forum, the following is the picture code on imgur.
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The instructions to post screenshots are right above the post you made: