Fixed it again

src/main/java/tschipp/carryon/common/capabilities/PositionProvider.java

@@ -7,7 +7,8 @@ import net.minecraftforge.common.capabilities.CapabilityInject;
 import net.minecraftforge.common.capabilities.ICapabilitySerializable;
 import net.minecraftforge.common.util.LazyOptional;
 
-public class PositionProvider implements ICapabilitySerializable<CompoundNBT> {
+public class PositionProvider implements ICapabilitySerializable<CompoundNBT>
+{
 
 	@CapabilityInject(IPosition.class)
 	public static final Capability<IPosition> POSITION_CAPABILITY = null;
@@ -18,7 +19,11 @@ public class PositionProvider implements ICapabilitySerializable<CompoundNBT> {
 	@Override
 	public <T> LazyOptional<T> getCapability(Capability<T> cap, Direction side)
 	{
-		return (LazyOptional<T>) LazyOptional.of(() -> {return new TEPosition();});
+		if (cap == POSITION_CAPABILITY)
+			return (LazyOptional<T>) LazyOptional.of(() -> {
+				return new TEPosition();
+			});
+		return LazyOptional.empty();
 	}
 
 	@Override