If there are no tracks in the session, and you import a tick-based audio file to the Clip List, Track List, or empty space in the Edit window, you are prompted to either import the tempo from the file or use the default session tempo. To keep the default session tempo, and have the loop conform to the session tempo, click
Don’t Import.
If the session already contains at least one track (regardless of track type), you are not prompted to import the tempo from the file and the file is conformed to the session tempo.