Toast 19.0 Stalling under Big Sur (macOS 11.0.1) in Toast 19 Posted July 27 · Edited July 28 by GTDiuguid Issue was corrected. · Report reply I have tried everything listed here, and I still cannot get it to not loop starting at 61%, stall out at 80% and error off that the burner or the disc is bad. Activity monitor goes to 1182% starting about 40% complete. This is a MacBook Pro 2019 with an I9 and 64GB of memory. I can burn the movie with the native app in finder. I have contacted support about this, then came to the forum for help. At first nothing seemed to work. I was at my wits end. Don't forget to restart, and do the latest OS X update. Everything worked after that! Thank you Jari Man and your customer support share for the solution.