stake wagering bonus says live blackjack counts but mine barely moved after 2 hours

So I saw that live blackjack is supposed to qualify for the wagering bonus but after grinding at the tables for two hours, my progress bar barely ticked up at all. I was careful to play the standard tables and not any of the weird variants, just in case there were restrictions buried somewhere. Went through maybe a hundred hands, didn't sit out rounds or anything. At first I thought maybe it updates slow, but we're talking barely a 5% move after a solid session.

I know sometimes certain games get weighted differently toward bonus clearing, but the promo said blackjack is included. I even double-checked the T&C and didn't spot anything obvious. Am I missing something that could explain this? Anyone else notice slow progress with table games, or is there maybe a trick to getting full credit on blackjack?