Not sure it’s a bug or not, and whether that would be a Bubblebug or an addon bug. But here it goes:
Setup an expand/collapse menu using custom state on the collapsible group header and a workflow switching state from expanded = yes to no. The icons are Feather Icons (add-on).
Works fine when clicking on the group or on the text. However, when clicking on the icons, it runs an animation without changing the state. So it just quickly reverts to the same state.