How to unselect groups (After using Ctrl+LMB)

[ATAG_Bliss]

This is kinda buggy (I know I know, imagine that). But what I do is unselect the object by cntrl + alt, then go select another object. If you are still linked to the 1st object grouping, try using alt again and draw a square around an individual object this time. Then repeat with cntrl + alt again and you should be all unselected.

Another thing to try is to highlight one object with alt again and then use cntrl c (copy command) on a different object and then the cntrl + alt method.