I’m importing from the files app. About the loop being a few bars long and in .caf format, I have imported full audio file that are more than a minute long and are in .mp3 format, and those have worked out fine. This is exactly the same type of thing, a normal .mp3 file over 1 minute long. Shouldn’t it work the same?
I don't know. Perhaps GarageBand doesn't like the format if the particular file you're trying to add. Are you sure it has the right file extension? I've seen cases of .m4a files labelled as .mp3 and vice versa. Some software will accept them anyway, and be able to play them, others can't/won't.
tt2
I don’t get what you mean. Please elaborate.
Perhaps you are trying to add an audio files as a loop when that isn't appropriate. See GarageBand for iOS (iPhone, iPod touch): Add Apple Loops and audio files.
tt2
A loop is typically a few bars long and in .caf format. Are you trying to import from iTunes or the Files app?
tt2
It’s definitely a .mp3.
When I import loops into GarageBand, the text is grey and it won’t let me drag it into the song. How to fix?