Why I can't I get the fix position while scrolling?

I’m selecting elements in my frame and it’s still not working for me. What am I doing wrong? I removed auto-layout.

When you need to put an element in “Sticky” mode, you have to consider a few things:

1. Your main content must to generate scroll

2. You have to put your sticky element over the frame “with the viewport size” emulated (that means you have to make your whole design). After that reduce the frame to the viewport size, and then put your sticky element. Right here, just here, you will see your sticky element in the right place you need to put on. Obviously you have to consider its properties for that.

If you apply the “resize the frame to the viewport size” in your actual problematic frame, you will see where your sticky elements is, and why you can’t see it.

Hope this help.
Greetings

Hey, maybe it’s late, but I had the same issue, turns out you just have to apply the absolute position to your element before choosing the scroll behavior in “fixed” for it.
To see the results, your main frame must contain elements bigger than it or than your device size.