Pre approved for credit card and then instantly rejected once I applied

Since the CC has been taking off a waitlist exclusive, curious if anyone else has been rejected by WS for their CC. As far as I can tell, I meet all their requirements by a significant amount and have also just recently been approved for an Amex card as well, which supposedly has stricter requirements. Also made sure to check TransUnion and verified all my details looked solid.

Honestly, just a bit confused and frustrated as I had an ideal Colbalt + Infinity + setup I was going for.