From 4.19 to 4.21 - incompatible_unique_net_id

[anonymous_user_097cf91c]

@Crzyhomer

That being said, I’m curious, how do you get around the automatic calls to RegisterPlayer that would probably complain. Do you overload these functions? Do you not use the session interface to manage multiplayer sessions? Just want to understand the paths you are treading.

Most client/server relationships should be talking compatible OnlineSubsystems. For example, it makes little sense for a Steam client to join a non Steam server and not authenticate. A lot of that pipeline was written in the base engine implementation. APlayerState has one FUniqueNetId, which should be the one defined by DefaultPlatformSubsystem in your DefaultEngine.ini file.

@Crzyhomer

I used to be able to use the command “open ExampleMap?listen” on PC
and then connect using “open [PC’s IP Address]” on my iOS/Android device to quickly test out multiplayer, but now this crashes the game.
If you can, please fix this and let us know, thanks!