And again, this used to work fine in Kicad 7.x
That might be, but does not really help to find a solution for your current situation in v8.
The easiest way would be to attach the archived project, so others can investigate your problem.
As you are a new user please read (and follow) this FAQ-article: New Member Information
This allows you to promote yourself to basic forum user level, which is needed to attach a project archive in your thread.
edit: I overlooked that the link already included a project, not only symbol+footprint.