Several glitches mainly with reels. When selecting multiple videos for one reel after trimming the first video the 2nd will have the trim line at the bottom all the way in the left hand corner of the screen. And not adjustable from the left side of the sliding bar. If you back out of instagram the app saves your draft and when returning click on reel and it will ask you to continue where you left off. If you do continue the next video you choose wl be available for trimming normally.