Bug:Models with more than 300 million import faces using UE5.3.1 will crash

A surname

That doesn’t really sound like a bug to me, more of an issue of you running way out of ram+pagefile. How much ram do you have an what’s your pagefile size? You might be able to cheat needing to buy more ram by increasing your pagefile size to something larger like 32/64GB or something.

128g

now,in ue5.4,it work