Why do my Instagram videos glitch?

Sometimes when I watch videos on Instagram they won't play all the way through and will glitch like the above picture. I have an iphone 5 and I don't understand why I'm having this problem!

Maybe it's probem w app, connection or don't enough memory in your iPhone. Or phone w defect I don't know 4 sure…

  • Why won't my iPhone play videos on Instagram? So I have a iPhone 4 on net 10 prepaid with unlimited talk, text, and web. But every time I try to play a video on Instagram it won't work? It loads for about 5 seconds n then it's just froze with a circular arrow(The Retry or refresh button) but everything works on Wi-Fi. Does anyone know wats the problem? I tryed rebooting my phone n updating instagram n my iPhone but still.
  • Why won't my instagram give me the option to upload videos? When I hit the + button, only the photos in my library appear and none of my videos. Is this an instagram issue or a problem with my phone? I'm using an iphone 6.
  • Why does my iPhone receive good quality videos as bad quality videos? So I recently met a famous guy in concert and when I got a picture wth him I was getting a video and my friend used her phone to video it. So she sent it to me and it was like terrible quality and the video was like little with a huge black border around it. But yet it looks perfectly fine on her phone? How do I fix it? Whenever I try to get video editing apps it always says error & only with that particular video. I have an iPhone 5c, and so does my friend.
  • Why can't I play videos on instagram? I have an iPhone 4S and have updated the instagram app. I'm given the option to play the videos but nothing happens. I have turned off the auto play but still no luck. Is anyone else having this problem?