“Out of the box” the SketchUp Components inspector panel looks like this …
These are two folders of sample components that “ship” with SketchUp.
(You can navigate upwards using the droplist to the right of the house icon.)
If you choose the latter, you see a listing of training components.
I just tested using the “Cafe Table”, and I did not see what you described.
Ie … I inserted an instance. Then switched back to the Select tool, and clicked empty space to clear the selection. Then, opened the DC Options dialog.
I then selected the Cafe Table instance and the dialog was populated with option attributes as expected.
You mentioned restarting SketchUp and then the dialog works as expected.
Is this a new blank model that you restart into when it works ?
Or do you double click on a .skp file in finder to restart SketchUp ?