On my test site I have attachments limit set to 10mb and the size show when uploading is 200x200px
Ive just uploaded a Gif file and it does not move (as in no animation)
I even tried to upload it though the admin panel editing the user with the same result.
I also tested a smaller image (less than 200x200) and it worked fine.
I also get no errors so can't provide one.
To reproduce just upload a 200x200 animated Gif image.