Every time I open Vegas Pro 18.0, a pop-up comes up asking to perform a major program update. I agree to the update, which takes about ten minutes. It says Vegas Pro needs to restart for the update to take place. I press okay. The program closes. A sign comes up that says "Do you want this program to make changes to your computer?" I hit okay. Nothing happens, no matter how long I wait. I re-open Vegas Pro 18.0 and the same pop-up comes up again, asking to perform the major program update which, again, takes 10 minutes if I agree to it. It seems the update is not successfully installing? I've tried restarting my computer and that also did nothing. What do I do?