Size And Position Bug

When i try to change position or edit the size of a video, the video dissapears from the screen. lets say i wanna edit a video and have a overlay with another video. I select the Size And Position filter, Then change the Size. But then the video dissapears and i can only see the background.

Have you enabled composite mode??

Yea, Its enabled. But even when it is it dosent work.

Well it works fine here with latest version W10 Pro 64.

Please have a look on that subject. Text filter resize
I’ve got the same issue with size and position. At my case it was related with decimal symbol setting at my Windows regional settings. Please have a look and try.