sendPhoto returns success yet shows a static image. Example:
/secret_key/invokeImage?target=USER_CODE&img=animate_sample
How do I ensure the GIF animates instead of remaining a still? Use an alternative method?
In my experience, the issue arises because sendPhoto treats GIFs as static images. After encountering similar behavior, I switched to using the sendAnimation method available in the Telegram Bot API. This method explicitly supports animated GIFs. When I sent my GIF using sendAnimation, the image animated properly. Although it may seem like a simple change, it is essential to adjust the request. Ensuring that your bot is using the most recent API version can also help avoid unexpected behavior. This approach has proven reliable in my implementation.