I have been trying to debug this off and on for a few months now.
I am using the basic menu for now, but miss the type search to launch applications.
I can add the advanced menu to the panel, but it doesn’t appear on the panel.
I have run mate-menu reset (and clean) with no change.
I have removed the mate-menu and related rpms and then logged out and logged back in, and reinstalled.
I am not sure what else to do at this point.
I have placed more details for this issue in a bug here: