(i should put, again, the caveat that i’m not the MLR author. i don’t even use it really!)
my understanding is, that’s intended functionality.
an MLR “clip” is a region in the softcut buffer.
by loading a soundfile to a clip, you copy over that buffer region.
by assigning a track to a clip, you allow it to read and write in that region.
multiple tracks can affect the same part of the buffer. this can get weird.
if you want two tracks to intially use the same soundfile data, but then independently record over it or whatever, then load the same file into two different clips.