John, I tried to catch U on another thread but I’ve been following these a lot and still don’t see a solution — please note in my case, it’s that I was at the end of a 2.5hr timeline (!) and v13 stopped seeing mp4s. I have v11 and MS Plat13 AND v12 (on another PC) and all 3 are opening the same mp4s. I uninstalled v13 and reinstalled. K-lite has been in all my systems for years w/no issues, BTW.
Still nothing different, except I’m now seeing .mov files in v13 which didn’t happen before.
Bottom line: why not v13 for my 100’s of mp4s (conversion is out of the question!) but OK in 3 other Vegas programs???
Thanks for what you may offer.
PK