ReplayHandler#spectateCamera() creates a new CameraEntity if the current instance is null

src/main/java/eu/crushedpixel/replaymod/replay/ReplayHandler.java

@@ -151,6 +151,9 @@ public class ReplayHandler {
             cameraEntity.movePath(prev);
         }
         currentEntity = cameraEntity;
+        if(cameraEntity == null) {
+            cameraEntity = new CameraEntity(mc.theWorld);
+        }
         mc.setRenderViewEntity(cameraEntity);
     }