Options Orders not filling

I’ve placed quite a few orders for various iron condors and the orders aren’t filling. Can someone help explain why and what I can do to prevent this in the future?

This is on SPY and volumes are between 5k-15k with open interest around 10k. Usually there’s a 1-4 cent spread between the Ask & Bid. I’m going with the exact Ask price and not the mark. Also if it matters, I’m using Robinhood as my brokerage