I have been trying to send my player card for 3 days. Basically, the card contains a mouse controlled GIF. However, it was rejected every time and the Twitter Support sent following email.
Thanks for the follow up. Player Cards are reserved for linear audio and video. If you see a Player Card that is not in this format it is non-compliant with our policies.
Your gif will not be approvable in its current state, unfortunately.
Twitter Platform Operations
Additionally, according to the policy, SlideShare’s and Google Docs’s player cards don’t contain a video or an audio. You can check in this URLs: https://twitter.com/33voices/status/568486561433686016 and https://twitter.com/BlogModerateur/status/555730791909818369
Could you explain exactly, what is linear audio and video?