It could be that your IG app settings are not configured correctly. Check the sharing settings within the Instagram app on your iPhone.
Maybe it's a compatibility issue with your iPhone's software version. Try updating it and see if that helps.
There might be a temporary glitch in the Instagram or iPhone system. Sometimes restarting both your phone and the app can solve the problem.
Maybe there's a technical glitch in the app. Sometimes these things happen and it could get fixed with an update.
Maybe it's a technical glitch or a change in the platform's policy. Sometimes these things happen without a clear reason.
Maybe there was a technical glitch or a change in the app's settings at that time. It could have been a temporary issue.
It could be that your account doesn't have the necessary permissions or your IGTV content doesn't meet the sharing criteria. Sometimes, it could also be a temporary issue with the platform.
It might be because the IGTV video you're trying to share doesn't meet the platform's sharing criteria, or your internet connection is unstable. Try again later or check for any platform updates.
It might be because of a violation of Instagram's terms of use or community guidelines. Or perhaps your IGTV video doesn't meet the requirements for sharing on a story.
It could be that your account doesn't have the necessary permissions or there are platform-specific restrictions. Also, make sure you're using the latest version of the app.
Sometimes, it might be due to copyright or content policy violations. Make sure the video you're trying to share adheres to the platform's rules. Also, ensure you have a stable internet connection as that can cause sharing issues too.
It could be that your account settings are not configured correctly for sharing IGTV on your story. Check your privacy and sharing settings to make sure everything is enabled properly.
Maybe there's a technical glitch or a setting that's preventing it. Check your app permissions and internet connection.