Mac keyboard shortcut "⌘." for "Expand/collapse" has stopped working

Steps to reproduce

Type " ⌘." or “CMD-.” on Mac.

Expected result

A single item should expand/collapse.

Actual result

Nothing happens.

Environment

Which operating system are you using? MacOS Big Sur 11.6
Which browser are you using? Chrome version 97.0.4692.71 (Official Build) (x86_64)
Are you using any third-party scripts for Dynalist, e.g. PowerPack? No