If your media is looping, it's because the segment or script assigned to it is longer than the media duration, causing it to loop.
Note
In another case scenario: The media can loop if it was set to play for 8 seconds but we shortened it to 2 seconds. It will repeat until it finishes the full 8-second segment it belongs to.
Make the script or segment shorter
Click on edit and go to the script section.
You can copy the sentence from edit media and use it to search within the script section to locate it easily
Shorten or rephrase the sentence here:
This will stop the video from looping