Good day! The problem is with the latest OS from Apple and toonboom Storyboard Pro 4.1. Whenever I try to add or delete a panel with a soundtrack unlocked (multiple sound clippings on it), a window pops up telling me that TBSpro “cannot determine audio format of sound file, failed to read sound format for,…”. Sounds have been imported as .wav files, they are all audible in TBSpro. Each and every time I move one panel, this window pops up again and I have to clic on OK to make it go. Is there a way to correct that behavior? Please help, I’m going crazy!