mgm blackjack says hand was refunded but bonus progress went backwards

so i was playing online and right in the middle of a hand it crashes. when i log back in it says the hand was "refunded", which is whatever, i didn’t lose the bet but i didn’t win anything either. but then i look at my promo tracker and it’s like my bonus progress actually went backwards. not just stopped, literally lost a chunk of what i already had. i’m trying to figure out if that’s some glitch or if they just clawed back a bunch of promo credit because of the voided hand. feels off because the bet was real, i sat and played for real dollars, just didn’t get the outcome.

anyone else ever have this happen or know if this is standard?