Unable to claim Twitch drop

I have Twitch and Battle.Net connected, yet I am unable to claim a drop I received for Hearthstone. On twitch.tv/drops, I can click “Connect to game to claim” but I am already connected to Battle.net. I’ve tried to break the connection, wait for 8 days and reestablish the connection to no avail.
What am I doing wrong?
//Novaree (TarjanAbe on Twitch)