Why can't one post music on IG story?

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 not configured correctly for posting music. Check your privacy and media sharing settings to make sure everything is enabled for music uploads.

Maybe it was a technical glitch or a policy change that year. Not sure exactly.

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 and try again.

Maybe your internet connection is unstable. Check if you have a good signal or Wi-Fi.

It could be that your IG app is outdated. Update the app to the latest version and check again. 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 are some technical glitches or compatibility issues. Sometimes the platform's settings don't allow it for various reasons.