To replicate:
Initialize a chord track with no contents. Switch to Layer view. All the note parameter layers are set to “—”. Activate Force-to-scale. All the note layers now read “c#1” - they don’t seem to actually be sending notes though. Deactivate force-to-scale and the note layers read “—” again.
Totally minor bug, I don’t think it affects anything other than the display, but I thought I’d point it out.