Selection bug with group objects (Rhino 8.3)

I have some windows and the frames are grouped together. When I left click to select the group and left click again, the group member clicked will be deselected which is weird.
Please check the screen recording below:

Hi -

I’m not seeing that behavior here.
Is this something that you can reproduce with this simple scene?
GroupedObjects.3dm (279.1 KB)

-wim

Hi @wim ,
I can’t reproduce the bug with your file.
I can’t reproduce it even with my own file now.
Don’t know why. :see_no_evil:

Thank you for your reply.