Now, instead of dying of curiosity just because we can't play and watch Instagram videos that pass on the timeline, here, we provides a solution for how to solve Instagram videos that can't be played. This could be the reason why we can't play videos on Instagram. App UpdatesAnother possibility that causes Instagram not to run videos is because the Instagram application on our Smartphone is not updated. If it is not updated, it could be a bug causing Instagram not to be able to play videos. If your internet quota runs out, it's clear that your Smartphone can't play Instagram videos that require an internet connection to run it.