Whenever I send videos on Instagram through direct message, they become pictures?

Recently, whenever I or others send me VIDEOS from CAMERA ROLL, they are pictures for me. The other party can view them as videos, and even my other account on the same phone doesn’t have this problem. It’s not like the video is buffering, it has no triangle on the top right that indicate it’s a video, and when I... show more Recently, whenever I or others send me VIDEOS from CAMERA ROLL, they are pictures for me. The other party can view them as videos, and even my other account on the same phone doesn’t have this problem. It’s not like the video is buffering, it has no triangle on the top right that indicate it’s a video, and when I click it is just a picture
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