No clear detection of MT overlapping problem during relaxation
Sometimes a structure can not be relaxed because it enters the infinite loop:
atoms attract ⟹ MT overlap ⟹ displacements rescaled ⟹ ⥣⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⟸⥥
An unexperienced user can not quickly understand what causes the problem and why a structure can not be relaxed. Thus a warning/error message would be very helpful when this problem is detected.