Servers 4.5.2 and 3.5.1
Seems like we just updated the servers not too long ago and now there is a new patch to fix an apparently long-standing glitch which caused the servers to crash any time IP addresses were converted internally.
The functions now use a somewhat rolled back method from a few versions ago which seems to work good.
Everything has been pushed public and things are compiled and ready to go! You can find the Godot 4 server here and the Godot 3 server here, with the GDExtension version on the Godot Asset Library.
These IP conversion functions will get backported to the standard branches soon too.