When an image on a post is changed or amended some clients have trouble with these changes are not reflecting on Twitter.
This happens because Twitter caches the preview that is first generated when the link was shared. LinkedIn, Twitter and Facebook use cache, because it reduces the average cost (time or energy) to access data, but it can be problematic when it impacts your posts.
Follow these steps to clear your Twitter cache
- Alter the image on your post
- Go to: https://cards-dev.twitter.com/validator
- Input Post url into the box and select preview card
- You can now go ahead and share your post with the correct image