Facebook has API limitations for any third-party app like SocialPilot to post a GIF to their profile, page or group.
When you schedule a GIF to your Facebook account with the SocialPilot scheduler it will be posted as a static image only, but clicking on that you will be lead to a new tab with the GIF in motion.
This is not something we can handle or change. Facebook has set up these limitations.
Note: If you schedule the same GIF again it will be published as a native GIF in motion there in the feed only.