This is even more important with the latest UI changes for classes/ids because by default you can’t see the ID or it’s toggled state and even one ID that is not enabled will cause this error and cause all interactions to fail.
@Louis, while I am big fan of the improvements and additions made in the latest version, is it possible to make the ID a little bit more discoverable and perhaps find a way to show it above the class (small) if it has been enabled - doing this will go a long way to mitigating this issue.
Example:
