Actually, after speaking with Corel Tech Support (I think they own Roxio), it turns out that Corel is working on the solution.
But, by simply waiting a few minutes (3:15 in my case), Toast opens up and runs normally.
Hope this helps.
Has anyone had trouble starting up Toast 17 under Mojave? I am only getting the Sping Beach Ball of Death on my screen. Force quit windows reveals Toast is not reponding.
Then I force quit the program.
Thank you in advance.