Hi everybody!
Since I've upgraded Ubuntu to 22.10 kinetic (studio edition), the applications menu in the advanced MATE menu is empty. The simple MATE menu still does work properly.
In the file ~/.config/menus/mate-applications.menu there is the line:
<MergeFile type="parent">/etc/xdg/menus/mate-applications.menu</MergeFile>
When I copy the basic content of the merged file replacing the line above, it works again.
I did not find any way to get the Ubutu/MATE way of merging the file to work. I'm afraid hardcoding the config file within the user's home folder could confuse with updates or newly installed applications.
Is this a general bug or has something gone wrong with my recent Ubuntu upgrade? How to fix this issue?