The combo box is fixed in 1.6.0 final, thanks! The library refresh still doesn't work though, here are the steps to reproduce:
1. Delete track A from your music library, e.g. in file manager.
2. Click menu item to refresh library - result: no change in the library list.
3. Remove track B from the library list with a right click, it vanishes from the list.
4. Restart Mixxx.
5. The manually deleted track A is gone from the library list, as it should be. But the removed track B is back in the library list! :-)
The combo box is fixed in 1.6.0 final, thanks! The library refresh still doesn't work though, here are the steps to reproduce:
1. Delete track A from your music library, e.g. in file manager.
2. Click menu item to refresh library - result: no change in the library list.
3. Remove track B from the library list with a right click, it vanishes from the list.
4. Restart Mixxx.
5. The manually deleted track A is gone from the library list, as it should be. But the removed track B is back in the library list! :-)