I just figured this out today, not sure if I've seen this tidbit before. Non-Pro accounts have a gif limitation of 360 pixels wide, but looks unlimited height. A saw a gif by rochardt months ago, imgflip.com/gif/1hctue never occurred to me that can be done with a non-Pro account. I tried it today, mine has the same dimensions, 360 wide by 2070 tall. Gifs that tall need to be about 8 frames or less with a non-Pro account for smooth motion though. I'm going to try a few tall gifs of the next week or so.