We introduced significant improvements in rendering speed for the screen cloning feature in the latest version, but it should not presumably affect the old experiments. Cloning visual surfaces of actual events is a resource-consuming process that can disrupt accurate timing. That’s why, by default, this feature is off in newly created events. To turn it on, select the event and set the Screen Cloning to True in the Properties panel (and in all events that you are interested to see on the status screen). When you have multiple layers, the Screen Cloning has to be True in the bottommost event, which is a top layer in a visual composition. I believe that his will be likely a solution for your problem.