Clicking on internal video preview full screen in vegas time line, in my laptop, video from the time line goes to full screen but playng flashes a lot and is unstable. i haven't ever experienced this problem before, with any version of Vegas since 13TH to today.
I use: Vegas 22 pro suite licensed - my vegas project 1080p 25 fps Progressive - Laptop lenovo, Intel(R) Core(TM) i7-1165G7 @ 2.80GHz (8 CPUs), ~2.8GHz
resolution of the desktop 1920 x 1080 60 Hz. GPU: Intel(R)Iris(R)Xe Graphics - VRAM 128G - Ram shared 8091MB
i attach a link to a short video showing the problem using video preview full screen in Vegas 22 pro: