silver2row Hello, My image: Bela image, v0.3.8rc2, 10 May 2020 I am on Lesson 4 of the C++ Programming w/ BELA and I cannot get the GUI to work. If you have some extra time, please reply w/ some recommendations. Seth
giuliomoro I think there may have been a short-lived bug there (v0.3.8rc2 was marked as EXPERIMENTAL). I'd encourage you to get the latest stable version and try again.