N13 problem: Add group channel to selected channels

In N13, the “Add group channel to selected channels” function, at least in surround (7.1.2 and 7.1.4), takes 16 long seconds to spin the wheel on my Mac M2 Ultra to create the group.

In N12, to which I returned 3 times to test, it’s instantaneous, or let’s say one second.

There’s something wrong under the hood. Can others do the test? Or SB?