ID:948940
 
(See the best response by DarkCampainger.)
Problem description: So i'd figure i shuold post it here before filling a bug report.

I've downloaded some gifs (To update my Pokémon Demo), but i've figured out that they don't display correctly neither when i open the gif in Dream Maker or in the worlds map.
If i open it using Chrome / IE they seem fine.

It's BYOND fault?

This is the link: http://sprites.pokecheck.org/bs/494.gif
Try importing it into the .dmi format.
In response to Avainer1
Avainer1 wrote:
Try importing it into the .dmi format.

It's still the same. :/

Wonder if it's a BYOND bug.
In response to Blastcore
Can you define "not displaying correctly" ?

Is it that they don't have a movement state?
I mean some frames are missing or the image cutted (half-sprite) it shows fine on IE / Chrome
if you have tiled based project but used vars like step_x and step_y it cause the animation to end before it reaches the step size try making it on different project and see it that happens
It happens on icon editor too. I'll explain better. So i've downloaded it . I've put it in my project and i've loaded it on the map.and there the issue came. Some frames were almost gone (meaning some of them were missing a part. (like they don't have legs or head or some part of the body.). So i've opened the gif and the issue was there (i've opened with DM icon editor). I've opened it with IE and Chrome and the gif was fine.
Best response
The GIF is compressed. Instead of repainting from scratch for each frame, it draws over the previous frame. This means that any pixels that don't change between frames can be excluded in subsequent frames, and hence are missing in the imported icon.

You can "fix" it by overlaying the frames over their previous frame, in sequence.
Nope, it's not that simple. They're using redraw areas or something. If you open it in GIMP or something similar, you can see how the layer boundaries and replace/combine are used to only redraw parts of the image between each frame.
I've fixed it with Gif Movie Gear. :) Thank you.