Apple unable to connect to dedicated server - UE4.24 build

Is anyone else having difficulties getting through the Apple submission process? I am sending the a multiplayer game with dedicated server hosted on AWS to Apple and they kept failing it because when they enter the game session they cannot connect to the server via the UDP ports. I am seeing a timeout error on my server. It is only specific to Apple. I’ve used TestFlight for testing with players all over the world, also via VPN. All the builds are obviously Shipping and mark for Distribution. The odd thing is, there’s no problem with the Android build. It’s already on the Android app store and I’m seeing traffic.

Any tips or anything worth looking into will be greatly appreciated. I’m pretty stuck on this one.