Make sure you're doing the following

• [Y] You're using the latest build for your server version
• [N] This isn't an issue caused by another plugin
• [Y] You've checked for duplicate issues
• [Y] You didn't use /reload

Describe the question
When I try to create and set a scoreboard team for a player entity I create using packets, it kicks the player saying the Error sending packet clientbound/minecraft:set_player_team. It then goes on the say Parameters not present, but method is 0. Doing some digging I found that when the action is set to 0 meaning creating a new team, you have to set optional fields, which I did, but it still does not function.

API method(s) used
List what API method(s) you're using

Expected behavior
A new scoreboard team should be created for the player entity and set to the player entity, hiding their nametag.

Code
If applicable, add relevant code from your project
`getPacketContainer().getModifier().write(0, action);

    // SETS UNiQUE NAME FOR TEAM
    getPacketContainer().getStrings().write(0, scoreboardName);

    var teamDisplayName = WrappedChatComponent.fromText("");//Get team display name

    //Create optional internal structure
    var optStruct = getPacketContainer().getOptionalStructures().read(0);

    //Check if is present and write data
    if (optStruct.isPresent()) { //IS ALWAYS PRESENT

        System.out.println("Scoreboard optional parameters is present!");
        //Get internal structures
        var struct = optStruct.get();

        //Write data for internal structure
        struct.getChatComponents().write(0, teamDisplayName); //Sets team display name || CRUCIAL for team to work
        struct.getIntegers().write(0, 1); //Sets amount of entities the team can accept || Only the corpse
        struct.getStrings().write(0, "never"); //Entity name tag visibility || NEVER
        struct.getStrings().write(1, "never"); //Entity Collision rule || NEVER

        //Write internal structure to packet
        getPacketContainer().getOptionalStructures().write(0, Optional.of(struct));

    }

    //Add entity to team
    getPacketContainer().getModifier().write(2, Lists.newArrayList(entityName));`

Additional context
I recently switched from 1.20.2 to 1.20.6, I didn't experience any code-breaking issues besides this one.

Running into a related issue. Basically the optional structure seems to be empty by default now

edit: looks like WrappedTeamParameters are the solution

Can you maybe post the updated code?

I'm now using the following:

WrappedTeamParameters parameters = WrappedTeamParameters.newBuilder()
		.displayName(WrappedChatComponent.fromText(displayName))
		.prefix(WrappedChatComponent.fromText(prefix))
		.suffix(WrappedChatComponent.fromText(suffix))
		.nametagVisibility(nameTagVisibility)
		.collisionRule(collisionRule)
		.color(ChatFormatting.RESET)
		.build();
packet.getOptionalTeamParameters().write(0, Optional.of(parameters));