Trying to put video of scrolling screenshot into laptop mockup

[flowerchild31]

I exported the video of the scrolling screengrab and it works fine as a video-but when I drag it into the laptop mockup it seems to read it as an image.  It no longer gives me options to play it and when I try to export as render video it tries to export as jpg.  Any ideas would be greatly appreciated! 🙂

[c.pfaffenbichler]

In the File in the top screenshot did you ever hit the »Create Video Timeline«-button?