F23 KDE spin, all patches applied.
I'm having trouble adding a file type (System Settings, Applications, File Associations). The use case is to be able to click on a Commodore 64 disk image and have it come up in a Java program I wrote (this worked in previous versions).
I click the Add.. button to create application/d64, then add an icon and the file extensions, and specify my program under "Application Preference Order". After clicking "Apply", I see the "updating system configuration" dialog briefly.
But after closing system settings and reopening it, the new file type is nowhere to be found (and of course, clicking on a file of that type does nothing but prompt me with the "Open With" dialog).
Is anybody else seeing this? As I say, it worked before; I've been doing this for years in KDE.