Problem with export in Motion app

Hello!

I'm having trouble exporting a video in the motion app. I don't know why but when I export the video it is not similar in how it is in the project view within Motion.

Project within motion:

Exported video:

Observation:

As you can see in the images, what I do within the project has no effect on the video and it only repeats the first page instead of showing the ones I selected.

Observation 2:

And if I save the file and enter it again, it is again all the pages are arranged only on page 1.

Please wait for an answer. thank you very much!