Worth verifying Blazing's sale, as it had a b/o of 75 as Surs mentioned. Given that the person you bought it off had a b/o of 88 (https://bot.tf/stats/listings/467R3PLZ) when it sold, 55 is likely low here, especially if blazing's sale was at or close to his buyout. Its unlikely blazing would sell for 56 with a b/o of 75, and there 3 unusual weapons seen in the compare could of used some of the pure from that sale the same day. https://backpack.tf/profiles/76561198209640976#!/compare/1593993600/1594080000

Edit: got who the sales were to mixed up, ignore the b/o of 88 part. Person who bought of blazing re-sold for 56 the same day so it seems unlikely blazings sale was actually 56 if the buyer was able to flip for the same price in <1 day.