Grouped playing techniqhes messed up when moving in Engraving mode

Hi, I have noticed that when I try to move a grouped set of playing techniques (connected with arrows), things get messy. For example, I switch to Engraving mode, I select an initial playing technique, its arrow, and final technique and I move these using the keyboard (cmd + down arrow), the techniques move at a different spatial leap than the arrow. As a result, you get a messy layout of technique/arrow. The only possibility is to select them and move them with the mouse, which makes things much slower. HOWEVER, the big problem is, if I select several groups of grouped playing techniques and I try to move them with the mouse, the result is extremely messy. Arrows end up starting in random places, and pointing in the wrong direction. See attached.
This sounds to me like a bug, and solving it would make my workflow so much faster. Thanks!

Screenshot 2023-09-25 at 16.49.51