I just bought Vegas Pro 15 Steam Edition, I tried to launch the app but it said: ERROR CODE -59.
I tried to delete and reinstate de V15 but it didn't work more... I'm presently trying to found a way to solve that bug but I didn't found, so this is why I wrote this...
I hope to found a solution soon or I'll refund v15...
If needed I can record a video and post it.
I also bought DVD Architect but it did the same..