Fix #4210

dist/preview release/babylon.max.js

@@ -95929,6 +95929,8 @@ var BABYLON;
             }
             return false;
         };
+        NullEngine.prototype.releaseEffects = function () {
+        };
         return NullEngine;
     }(BABYLON.Engine));
     BABYLON.NullEngine = NullEngine;

dist/preview release/babylon.no-module.max.js

@@ -95896,6 +95896,8 @@ var BABYLON;
             }
             return false;
         };
+        NullEngine.prototype.releaseEffects = function () {
+        };
         return NullEngine;
     }(BABYLON.Engine));
     BABYLON.NullEngine = NullEngine;

dist/preview release/es6.js

@@ -95896,6 +95896,8 @@ var BABYLON;
             }
             return false;
         };
+        NullEngine.prototype.releaseEffects = function () {
+        };
         return NullEngine;
     }(BABYLON.Engine));
     BABYLON.NullEngine = NullEngine;

dist/preview release/viewer/babylon.viewer.max.js

@@ -96017,6 +96017,8 @@ var BABYLON;
             }
             return false;
         };
+        NullEngine.prototype.releaseEffects = function () {
+        };
         return NullEngine;
     }(BABYLON.Engine));
     BABYLON.NullEngine = NullEngine;

src/Engine/babylon.nullEngine.ts

@@ -428,5 +428,8 @@
 
             return false;
         }
+
+        public releaseEffects() {
+        }
     }
 }

tests/nullEngine/app.js

@@ -156,6 +156,15 @@ var engine = new BABYLON.NullEngine();
 
 //             console.log(pos);
 
+// const scene = new BABYLON.Scene(engine);
+// new BABYLON.PBRMetallicRoughnessMaterial("asdfasf", scene);
+// scene.dispose();
+
+BABYLON.Tools.LogLevels = BABYLON.Tools.ErrorLogLevel & BABYLON.Tools.WarningLogLevel;
 const scene = new BABYLON.Scene(engine);
-new BABYLON.PBRMetallicRoughnessMaterial("asdfasf", scene);
-scene.dispose();
+const camera = new BABYLON.ArcRotateCamera("camera", 0, 0, 10, BABYLON.Vector3.Zero(), scene);
+const mesh = BABYLON.MeshBuilder.CreateBox("box", {}, scene);
+mesh.position.set(0.5, 0.5, 0.5);
+mesh.isPickable = true;
+scene.render();
+engine.dispose();