There could be several reasons. Maybe your phone doesn't have enough storage space for the upload. Or, it might be a temporary glitch with the IG servers. Wait for a while and try again later.
It could be that your IG app needs an update. Try updating it and see if that helps. Also, make sure you haven't violated any of IG's posting rules.
Maybe there's a problem with your internet connection. Check if it's stable.
Maybe there's a problem with your internet connection. Check if it's stable.
Maybe there's a problem with your internet connection. Check if it's stable.
Maybe there's a problem with your internet connection. Check if it's stable.
It could be that your account settings are restricting the sharing feature. Check your privacy and sharing settings to make sure they allow for this action.
One reason could be that the music you're using is copyrighted and Instagram doesn't permit the sharing of unauthorized copyrighted material. So, if it's a song from an artist, you need to get the proper license or use Instagram's own music feature.
There could be several reasons. Maybe the music you chose isn't licensed for use on IG stories. Or it might be that your internet connection is unstable preventing the upload. Also, IG's terms of service might have changed and restricted certain music posting.
It could be that your account settings are restricting the sharing feature. Check your privacy and sharing settings in Instagram to make sure everything is enabled correctly. Also, make sure the post you're trying to share is allowed for sharing to stories by the original poster.
Maybe there's a glitch in the app or your internet connection is unstable.
Maybe there's a problem with your internet connection. Check if it's stable.