translate() is not the way to reset translate.
See:

1. int count, count2;
   void setup()
   
   {
     size(200,200);
   }
   
   void draw() {
     background(180);
     pushMatrix();
     translate(count++, 50);
     rect(20, 20, 10, 10);
     popMatrix();
   pushMatrix();
     translate(count2--, 50);
     ellipse(200, 20, 10, 10);
     popMatrix();
   }
   
   
   

Command translate() is cumulative. If you set translate(50, 50);
a translate(0, 0); wouldn't reset it to its default.
Unless you issue the opposite operation -> translate(-50, -50);  

However, the easiest way to get its default is use this one -> resetMatrix();
Or use this following pair -> pushMatrix(); to save current matrix, and popMatrix(); to restore it.

Also remember that callback draw() always start w/ a clean slate, as if you had used resetMatrix();
So you don't need to reset canvas matrix at the end of each draw() if you don't want to! 

ahh okay thanks for your reply, i was confused by the description in the reference: