Pleas add just 1 line of code to the ForgeHooksClient class in the Method    afterRenderPass(int pass) 
  
change: 
  
 if (handler == null) 
            { 
                tess.draw(); 
            } 
  
to 
  
 if (handler == null) 
            { 
            	if(tess.isDrawing) 
                tess.draw(); 
            } 
  
this would some rendering errors i got, and i saw on google, that many other people also have the same Problem, and if you look over the code,  
doing that changes nothing