moveForward crashes server

[Kneesnap]

What steps will reproduce the problem?

1. Create an NPCPlayer
2. Run #moveForward(3.0F, 1.0F);

What were you expecting to happen? What happened instead?

I expected the entity to move forward, instead the entire server crashed

What version of the plugin are you using? Type /version <Plugin Name>

Version 2.2.1

What Spigot version are you using? Type /version

This server is running Paper version git-Paper-808 (MC: 1.10.2) (Implementing API version 1.10.2-R0.1-SNAPSHOT)

What plugins are you using? Type /plugins

Plugins (4): PacketListenerApi, NickNamer, NPCLib, GravelSlash

Do you have an error log? Use pastebin.com. If you're not sure, upload your whole server log

http://pastebin.com/ix0AKTHX

Did your client crash? Upload errors in .minecraft/logs/latest.log as well

No

Additional information? (Are you using Bungeecord? Did it work in previous versions? etc.)

[InventivetalentDev]

Can you please try the same plugin on a default Spigot server? I'll guess this is caused by PaperSpigot.

[Kneesnap]

Confirmed on Spigot 1.10.2.

This server is running CraftBukkit version git-Spigot-90f61bc-83a9dbd (MC: 1.10.2) (Implementing API version 1.10.2-R0.1-SNAPSHOT)
Checking version, please wait...
You are running the latest version

Here's the class, for reference

public class AISneakLookout extends AICustom{

    private boolean lookDir;

    public AISneakLookout (NPCPlayer player) {
        super(player);
        this.getPlayer().setSneaking(true);
        this.setYaw(180);
    }

    @Override
    public void tick(){
        super.tick();
        this.getNpc().moveForward(0.5F, 0.1F);
        if(!this.hasTimePassed(2000)){
            return;
        }
        this.lookDir = !this.lookDir;
        if(this.lookDir){
            this.setYaw(135);
        }else{
            this.setYaw(-135);
        }
    }
}

[InventivetalentDev]

Should be fixed in v2.2.2.