Preview doesn't load when I move the playhead (After Effects)?

First of all, I just got CC yesterday and am completely new to all the programs. My problem is: When I drag the playhead through my video, the preview gets stuck on a frame. Only when I let go does it display the frame I'm currently on with the playhead. Hope someone can help me…

Why can't I change my luma matte/alpha in After Effects?

Hello, I am currently following the following tutorial: https://www.youtube.com/watch?v=Z6gR3KBwjas&list=PLrjVqD6ZYvwfbvuFbzCKBQNgnpLle0ksB At 3:18, it merges Shape Layer 1 with Shape Layer 2. Then, in the preview, the path is supposed to change from thick white to thin red. That doesn't work for me. After that, it switches from the alpha to the luma matte. I don't even…

CapCut: How to zoom individual clips on a MAC?

Hi, I have the following problem: On the iPhone/iPad I can import individual clips and then zoom them individually in the timeline (drag them larger/smaller) as I need. On the MAC, however, all individual clips are always zoomed in and I can't pinch the individual clips on their own. Why is this happening? What am…