This kind of problem occurs when I click on video preview full screen from a stationary cursor on any clip in the timeline and play the video. at that point the full screen view flashes intermittently and very fast. I have never experienced this problem with any version of Vegas, (i used this program since the version 13). actually, as always, my settings project in Vegas are: 1920x1080 p - 25 fps - time line during the editing is in half preview - the laptop i'm using to edit is a lenovo, with desktop resolution 1920x1080 60 HZ - windows 11 - Vegas pro 22 licensed -

Thank you a lot for your attention