I don't mind testing stuff. I figured it out. It's my triple monitor setup. If I only have one screen plugged in it works. I'm using DVI, hdmi, and vga. The DVI and HDMI are on an R9 390 and the vga is onboard intel 4600. Any combo of DVI and another monitor causes it to fail. With dual monitors, I restarted my pc and checked the log. It's still empty. Verified, I do have the latest visual c++ installed. Fresh win10x64pro install from last week. nothing special or changed. No indicators of missing anything.
Thank you for the extra information and troubleshooting. I was about to reproduce what you've been experiencing by setting up a dual monitor on my side as well. Finding the issue also immediately revealed why your log file was empty as well. I just submitted a new version and outlined the changes in Hotfix 2. Your startup issue should be fixed (if not, let me know). Thank you again.