I used to have the 32-bit trial and this worked fine.
I purchased the 64-bit version, so I'm not sure if that's where the limitation is coming from...
Here is what I am trying to do - I have a team photo. I am trying to overlay the person's face video on top of their image. So, I crop the video, apply green screen effect, and then attempt to slide the video face over the image. Yet as I move it below 50% of the full image, it is cut off - almost like there is something else there preventing it from being displayed. I hope that makes sense and someone knows what the issue could be?