One reason could be that your iPhone's operating system has a restriction. Another possibility is that the story app has certain limitations on adding music. Sometimes, it might also be due to insufficient storage space on your device.
It could be that the app you're using for your story doesn't support adding music directly. Or, there might be a problem with the format or source of the music file you're trying to add. Try different formats or update the app.
There are several reasons. Maybe your iPhone's storage is full and can't handle the added music. Or, it could be a glitch in the app. Try restarting your phone and the app to see if that helps.
It could be a software glitch. Maybe try restarting your iPhone or updating the app you're using to add the music.
It could be a software glitch. Sometimes the app might have temporary issues that prevent adding music.
Maybe there's a technical glitch or your device doesn't support it. Try restarting and see if that helps.
Maybe there's a technical glitch or your device doesn't support the feature.
Maybe there's a technical glitch or your app doesn't support that feature.
Maybe there was a technical glitch or compatibility issue. Sometimes software updates or changes can prevent adding music.
Maybe there's a compatibility issue with the music format or the platform you're using doesn't support adding music.
Maybe there's a technical glitch. Sometimes, the app or platform you're using might have a temporary issue preventing music addition.
It could be that the platform you're using doesn't support adding music for certain reasons. Maybe it's a licensing issue or a feature that's not available for your account type.