19C - Selecting workers on the nine box is not user friendly

Summary

19C - Selecting workers on the nine box is not user friendly

Content

Hi Experts, 

With the 19C, the way to select workers and move them (drag on drop) is not user friendly and doesn't work properly.

When I want to move a worker and then another one, the behavior is the following :

1) I Select a person A from the nine box or from the holding area
2) I move this person A to a box => ok
3) I select an other person (B) from the nine box or from the holding area
4) I move this person (B) to a box => ok but the person A is still selected and move also