If I go to the online help, and enter a search for a word or phrase, the program hangs and I have to force it to close. I found some very old threads about this issue and, as described in those threads, it only seems to be a problem AFTER a project is loaded and the Help is opened from within Vegas Pro. The Help works fine if opened outside of Vegas Pro (by double-clicking the help file directly). I started a new thread because the others were pretty old and on older versions of Vegas Pro.
I am using Vegas Pro 15 Edit, Build 416, Windows 10 with the latest updates on an i7-7700HQ with 16GB of RAM and an nVidia GTX-1050 (laptop model). I have also tried in the Vegas Pro 16 Trial version and it does NOT suffer the same problem here. I tried uninstalling and reinstalling Vegas Pro, including deleting all the left over folders I could find. It seemed like my preferences were remembered after reinstalling which leads me to believe there is a folder in either the hidden Program Data\ folder or the hidden User\AppData folder that I didn't find and delete. With some other audio software I use, it often helps to delete the preferences folder so that is what I was hoping might work as a fix but it didn't (but maybe I didn't get them all).
But, anyway, I was really just hoping that someone out there knows of a solution to this issue. One was never posted that I could find.