Ubuntu 16.04 with Software 3.20.1~git20160331.78d1aab-0ubuntu2 Now I can see K3b in Audio and Video categories. So I think you can mark this bug as "Fix released" for "gnome-software (Ubuntu)"
Ubuntu 16.04 with Software 3.20.1~ git20160331. 78d1aab- 0ubuntu2
Now I can see K3b in Audio and Video categories. So I think you can mark this bug as "Fix released" for "gnome-software (Ubuntu)"