It could VERY well be the video. A lot of phones record video using a variable frame rate, which saves storage space. But it's God-awful for applications like AE & Premiere Pro that count on seeing each and every frame as regular as clockwork.
You can use Adobe Media Encoder to transcode the clip(s) into fixed frame rate video. You may have to create a custom preset to do it... not tough. For the frame rate I'd try both 29.97 and 59.94 frames per second (no fooling). I like making quicktime movies in the JPEG 2000, PNG, Photo JPEG or Animation codecs.
And beware -- if you have video with an audio track, the audio may be off a bit.
Variable frame rate video really sucks. Fortunately, there are apps for your phone that will force it into shooting at a fixed frame rate. I'd get one. Or two.
thank you so much i will try that ASAP. And i dont need the audio so thats fine!
Question, how do I make the wuality the same when making it an MOV file? The quality always goes down and is really bad, i would like to retain the origina quality.
You have to pick a lossless codec. If you render a QuickTime with the PNG codec or the Animation codec, you won't lose any quality.
DNxHD, ProRes, and Cineform are all good choices too even though they're not technically lossless.