insurance paid wrong

so i bought insurance on a 10 bet, dealer shows ace, i get blackjack, dealer checks and has 10. usually that’s just a push and i lose the insurance bet. but dealer paid me insurance like i had a regular loss, so i ended up making more than i should have - twice my bet, instead of break even. did i just catch a lazy payout, or is there some weird rule i don’t know about?

never seen that at live tables or any crypto site before, but maybe someone here knows a legit reason for it? or is it just bug city in these games sometimes? i keep seeing odd payout things lately, gotta start writing them down or get a new “lucky” pen.