Error while packaging Unreal with EOS Plus

Hello, when I try to package my game (UE 5.1 from Source) which uses EOS Plus, I get a this error:
When I do a full rebuild while packaging:

LogOnline: Error: OSS: FOnlineSubsystemEOSPlus::Init() failed to get the platform OSS
LogOnline: Warning: OSS: EOSPlus failed to initialize!

Packaging without a full rebuild:

LogOnline: Warning: OSS: TryLoadSubsystemAndSetDefault: OnlineFactories does not contain [EOSPlus]

In both cases the build is successful, but all multiplayer functions do not work.

All plugins are installed correctly, DefaultEngine.ini is also correct and everything works when I play in the editor or start the .uproject as game.

Did you figure this out by any chance?

today when I try to configure EOSPlus as DefaultPlatformService the subsystem is null because I cannot load this subsystem

Unreal Engine 5.3