book accepted my in-play bet then cancelled it 20 minutes later after red card

Placed a live bet during the match, lines were moving fast as usual. Book confirmed the wager, money left my balance, I saw it in my open bets and everything. Then about twenty minutes later, right after a pretty wild red card, suddenly the bet just vanishes and my balance gets refunded. No alert, no explanation, just gone. I double-checked like five times thinking maybe I fat-fingered something or lost my mind, but nah, it's just them canceling it.

Had this happen to anybody else? Feels shady to me. I mean, you see the outcome’s heading south for the house and now the bet doesn’t count? I get that they gotta protect themselves against crazy line errors or obvious mistakes, but this wasn’t some off-market typo, it was right in the middle of play. I’d be less annoyed if it got voided like five seconds after placing it, but they waited until after the red card flipped the script.