Original file on After Effects: I had no problems with this edit until trying to export the file to a flash player video... so I changed the edit onto Adobe Premiere Elements.
Today I have been editing the text on the video for the statistics that appear on the right hand side of the screen. I have had some problems with the exported files and so I changed what programme I used to upload it to YouTube. Originally I wanted to use After Effects to export the file but it kept saying the file was corrupt. After a couple more tries I decided not to waste any more time doing this and so I recreated and edited the same file using Premiere Elements. I then haven't had any problems since changing what editing software to use.