You will never reach the Fortnite server at Amazon if you keep lowering the MTU of the packets and refuse to fragment them. I think you may need to understand what you're doing and why it's actually causing your problem:
OK, since the server is sending this message, you cannot control that. If you are not altering packets and properly using an 1492 MTU, then you'll have to ask Fortnite why they drop packets >= 1493.
Since you never mentioned this issue before; and given packets in your other threads were <= 150, I'm somewhat confused how you're now experiencing the exact opposite situation. Are you doing anything to these packets?
See original post and title...or maybe you don't understand the MTU issue...
It's very abnormal for a 1492 packet to be fragmented across internet routing equipment - especially since the common MTU is 1500. Additionally, the OP had an issue with "too small" packets; now suddenly Amazon is requesting fragmentation on packets at thier maximum size...?
And, I hope we all know that:
1365 < 1492
The problem here is the server appears to be sending the ICMP messages.
This usually means the sender could be altering packets; and the server doesn't expect to receive them. It is a game after all - probably anti-cheating features in place.
I think Epic Games should be more than happy to assist you then.