This should finally fix all the bugs and everything resulting in multiplayer on modded platforms. The files that caused that have been removed (to my knowledge) finally, so please test and ensure it works. Thank you.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }