MS3 (any) - Moving notes graphically detaches heads

Very often, especially in continuo realization (3-voiced right-hand chords) I require notes of different duration (e.g. eighths, dotted quarter) in one chord. In complex cases, 3 MuseScore "sub-staff voices" are needed, and I have to move the lowest voice a fraction of an SP to the right so the stems do not collide. In MS2, this worked well - I'd select the note head, and increase the x offset, and all is fine. In MS3, (after disabling auto-place) only the head moves; the tail does not move with the head. Not only is this annoying, but it is virtually impossible to select the now-detached stem that I wanted to move precisely because it collides with another! Is there reason for this change? Is it a bug? Can we envision a solution?