Comments

Chienworks wrote on 1/12/2014, 10:05 AM
Most likely your project frame rate doesn't match the source video frame rate. Vegas combines adjacent frames and blends them together when the rates don't match. You can stop this from happening by either making sure the project frame rate matches, or right-mouse-button click on the clip on the timeline and from the popup menu and disabling resampling.
Stan72 wrote on 1/12/2014, 10:15 AM
Thank you! I disabled resampling and it renders properly now. Strange thing is that my project and source video are both 30 FPS but Movie Studio thinks that source video is 120fps (in properties). But it's grayed, so I cannot change it.

edit: I tried many times create new project using "Match media settings" and it always results in 120 fps. I did some 120 fps projects befor this, maybe this setting is stuck somewhere in movie studio defaults?
Chienworks wrote on 1/12/2014, 5:38 PM
Is your source media really 120fps?
Warper wrote on 1/13/2014, 12:54 AM
MS sets framerate like this for varible framerate sources. Probably your source is unfortunately not strict 30 fps. It happens sometimes with modern android or iPhone sources.