Subject pretty much says it all, but let me elaborate just a little. Ever since the latest update, during the show playback, the only thing that plays is the audio. No models, no lights. The only way to fix this is to go back to Sequencer, grab all the models by putting a box around them to highlight them, then clicking off of them and re-trying playback. Sometimes this works, and sometimes I even have to go further by clicking on a specific model row to highlight it, or clicking a specific model effect, then trying playback. Once I can get one model to display, I can click off that model (into blank space), re-try the playback again and now everything plays as "normal."
Bug, glitch, or did something else possibly happen that I can fix?