Aligning issue of grouped item in Rhino 7

Hi Guys ,
I am having this issue , i dont know if it has anything to do with rhino 7. but it hasnt happened before i got the upgrade.
Basically when i try to align a grouped item to bottom. the group dosent hold its group, as in some items in the group will align and some wont.
does anyone know what the issue it ?

Hi Maggie - I believe you have an older service release - can you please run the SystemInfo command in Rhino and copy/paste the results here?


Hi Pascal
I updated the versions and the problem seems to be solved now. thank you