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Of course not - like I said: there is no support Save for money and get the original one - with legit Custom Launchers, you will have access to a huge variety of pre-configured modpacks and servers The download of cracked launchers often link to malicious sites and similar - or the launcher itself contains malware etc

Worked, thanks!

Use Java 17 instead of Java 18

Fixed it! Turns out I was using the wrong Java version. Thanks for the help though!

man, again, I wanted to thank you from the bottom of my heart, thank you very much for your help, I hope that one day I can help you too, it worked perfectly

I know this topic is a bit old, but I just had the same issue and a Google search points here. If your packet is working correctly, and its just the warning in the log, you've likely made the same mistake as me. Inside the "messageConsumer" you provided when registering your packet, you need to set the packet handled flag to true. "context.get().setPacketHandled(true);" If it isn't set to true, NetworkHooks.onCustomPayload will return false, and ClientPlayNetHandler.handleCustomPayload will post the warning