repeating rectangle

Hello, I have created a small, long, flat, free rectangle which then moves out of the image with the offset component via the X axis on the right and as soon as it overlaps the right edge of the image, it moves back into the image via the left edge.

The effect worked and then I must have changed something. Now the rectangle disappears from the right edge of the picture without reappearing on the left. Unfortunately, after many tests, I was unable to reproduce the effect. Seamless tiling is activated manually in the filter editor.

Does anyone know how to solve this?

My filter setup was simple: spectrum gradient (as color for the rectangle) > free rectangle > scale component > motion blur component > offset component

I use Filter Forge 14.
The attached image shows how it should work.

Thank you Rachel for creating the filter and explanation ! Good to have someone here with more experince. I try to work with it to create a animation. Before i didnt used lookup and i am still astonished about what went wrong in my filter structure.

Yes, a backup is a useful tool. I had already tried it with made a screenshot. However, the details of the components may not be visible. A filter copy is a better solution.