When we return to the grouped clips after some time, we find that they remain grouped (as they should),however, while clips on one same track maintain their assigned position, relative to one another, they do not remain in place (within the group) relative to the clips in the below or above tracks.
As a result we lose the desired flow, timing and synchronisation of the entire fragment and we keep having to ´ungroup´ the fragment, time it and rearrange it to then ´group´ it once again.
If anyone knows a way around this problem, it would be enormously helpful for us. thank you.