Is there se type of glitch with instagram?

I'm logged into 3 account's on my my iPhone 6 (saying this because i don't know if it's my phone or IG) on my first account which is my main account everyrhing is normal on my second account which is my older instagram i'm alounf to skip threw videos like if someone posted a video i could skip threw as if i was on youtube and on my 3rd account the homepage is much diffrent the bookmark thing is stuff is on top it's just everything is diffrent is there some glitch

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  • 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!
  • What can fix this Instagram glitch? I'm trying to follow my cousin on Instagram but when I type in his username it doesn't show up. Then when I go to my other cousins photos in a picture he is tagged in I can see his username. I click on his name and I click follow it says following then almost immediately it goes back to follow. I have restarted my iPhone re installed Instagram and logged out and back in. Oh and my cousin has over 4500 people following him could that have any affect on it?
  • Is there sometimes a glitch in the location sharing in iPhone? Can someone's location just turn off by itself? I know that when you delete your messages with that person, you're location is also stopped but apart from that is there a glitch that happens that stops location sharing?
  • Is there some type of micro sd card reader that I can plug into my iphone? Like an adapter where you would put the sd card in to this slot and then on the other end is a port that can connect to my new iphone and then the iphone would read the card and show me wants on the card, but not necessarily down load what's on the card just shows me what's on it, well is there