I am having this issue @Theozilla could you email me how you figured it out and @vkmast do you have some insight as to why Vegas Movie Studio 17 isn't updating properly and why all out of nowhere a update but isn't allow the Major Update to go through
Nothing besides the link I mentioned in my comment above. Did you read that thread and comments referring to the Task Manager? At least someone has tagged it as the solution in his/her case.
Btw, please no double/cross posting the same entry (See Community rule #3).