It could be that the post was set to private by the original poster or there are some platform-specific restrictions. Also, your account might not meet the requirements for sharing such posts. Try looking for error messages or guidelines within the app for more info.
Maybe there's a technical glitch or a setting issue preventing the sharing. Check your app's settings and make sure you have the necessary permissions.
Perhaps there's a technical issue preventing them from sharing. Or they might have concerns about sharing it for some reason that they haven't told you.
There could be a few reasons. Maybe your story is set to private, or your friends' social media platforms have some restrictions. Another possibility is that they just haven't figured out the sharing function.
It could be that the tagged story has some restrictions placed on it by the creator or the platform. Also, your account might not have the necessary permissions to share such content.