First, make sure your Instagram app is updated to the latest version. Sometimes, an old version may have bugs that prevent certain features. If that doesn't work, check your device's storage. If it's almost full, it might be affecting the app's ability to post. Clear some space and try again.
Maybe there's a technical glitch. Sometimes the app has bugs that prevent posting. Try restarting your device or reinstalling the app to see if that fixes it.
There could be several reasons. Maybe the format of the IGTV isn't compatible with the story format. IGTV is usually longer and has different aspect ratios compared to stories. Another reason might be a technical glitch in the app. Try restarting the app or your device and see if that helps.
It could be that your account settings are not configured correctly. Check your privacy and sharing settings to make sure posting to stories from IGTV is allowed. Also, make sure you have the latest version of the app installed as older versions might have compatibility issues.
There could be a few reasons. Maybe your internet connection is unstable. Or it could be that Instagram is having temporary issues on their end. Try restarting the app or your device and see if that helps.