As the title says. I had this problem with Platinum 14, now after purchasing Platinum 15, I have the same issue.
It's not an upgrade, it's a fresh install on a fresh system.
/NODXGROVEL removes the "Initializing DirectX" but the Movie Studio boot still hangs further down the line.
Reinstalling does not help.
Windows 10 Pro Creators Update, GTX 1070, i7-6700K