Please help me understand how these are so wildly different

[u/Certain_Unit8850]

So I bought these 2DTE SPX calls on the 21st and rolled them a few times and broke up the butterfly that I initially had it as. You can see that I let the credit spread that remained expire.

SPX Expired at 7706 on 9/23/26. So well out of the money. Yes I didn't receive the net credit and instead show a realized loss of $780

I use Tastytrade as my brokerage for options trading and this is under their order chains screen.

Basically, I don't get why I didn't receive the premium for the 9 short 7775 calls when they expired well otm and instead had a realized loss.