Animated GIFs don't play correctly

Hi,

I have a few animated GIFs in a module I am creating. When I upload to Review or an LMS some skip/jump/loop the beginning.

Anyone know how to resolve this? Plays fine when viewed in Preview. Also works fine when I publish to the Web, upload the zip file to a location and have a user download it, extract all, play the 'story' file.

Thanks.