"Phantom" groups splitting groups in SE

For sake of accelerate scenario building, many times I build a group with many units (Iranian MANPADS in this example), and later split it to place the diverse units on the map.
Now, in SC 2016.10 (and probably in previous versions), if you split the group, the new group is not showed on the map at first instance. But you can select it alternatively with the space bar and delete keys, and after selected you can "change group position", and the new group is showed.
Is a little molest when you're building scenarios, thanks.

(attached very simple example, with only a Red side group with Iranian MANPADS, split it, select with the mouse the "mother" group (with 5 remaining MANPADS), change his position in the map, and you shouldn't see the "son" group (with only 1 MANPADS), select the "ghost/invisible" group with "space bar" or "delete" keys, change his "group position" in the map, and you should see now the "son" group, previously a invisible "ghost" group).