can no longer copy paste subprocess with content (RM7.2)

Not sure whether this is new to 7.2 as I skipped a few versions, but if I want to copy a process that contains operaters (say a loop or subprocess) only the parent container is copied, but the internals are empty. Is this something by default ?

In the past everything inside an operator was also copied (so parent and childs) , but if only the parent is saved now this is kind of a step back.

I've migrated from 6.2 to 7.2 if that might help.