Since Vegas has problems with GoPro files, I have been using Studio 2.5.4 to transcode to Cineform. An upgrade notice popped up and I downloaded 2.5.5. Every time I try to launch it, it starts to load and then quits, with no messages.
I reverted to 2.5.4 and all is well.
Anyone else having the problem? I don't find any mention of it on the GoPro forums.