When you record and save a couple of tracks as Loops and name them "Take 1" and "Take 2", for example, then record two other tracks and save them as "One-shots" with the same names as the Loops, the "One-shot" tracks replace the "Loop" tracks.
Solution
Don't use the same name for the tracks. Consider adding additional descriptions, for example "take 1 loop" or "take 1 1shot".
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