Last time that Vegas worked ok was using build 421 (during may).
Yesterday Vegas asked to uptade to build 452 and since I can't open older project or import mov or mp4.
I can only import audio or listen to it.
The 1rs think that I will like to do is to re-install the build 421 and see if the problem is the recent build, but I can't find if that is possible (?)
I installed another video app and it works fine (DaVinci Resolve).
Thank you,
RW
Windows 10 Pro - 1903, Intel i7 3770K, DDR3 16G, Intel HD Graphics 4000