diff --git a/game-lib.js b/game-lib.js
index 399b1e0..0e18b75 100644
--- a/game-lib.js
+++ b/game-lib.js
@@ -2895,8 +2895,9 @@ GameLib.D3.Physics.World.prototype.Step = function(
 ) {
     if(this.engineType == GameLib.D3.Physics.Engine.TYPE_CANNON) {
 
-        this.worldObject.internalStep(timeStep);
-        return;
+        // todo: figure out, why this call to internal step is more stable for trimesh collisions.....
+        //this.worldObject.internalStep(timeStep);
+        //return;
 
         var now = performance.now() / 1000;
         if(!this.lastCallTime){