For example: 3 file Explorer folders in a group. Sometimes -that means aproximatly 20% of times that I open that previously saved group-, one of the explorer windows open out of the group. This +-20% error -opening but not grouping 1 or 2 of the windows/programs in the group- also had happend with other groups ( 7 chrome desktop windows group / a group with notepad, onenote, code writer and apply text). So, this odd behaviour, at least in my system, althought not an all the times problem, "sometimes" it´s there.
Anyway, let me say, please, that Groupy is great and the 1.1 inprovements adding Groups is a huge step forward. You´re doing a great job with this amazing app. Thanks.