Menus and System Settings not clickable Tahoe 26

SFBill wrote:

I use a MacBook Pro hooked to an external monitor and an external Apple keyboard - I also use a Wacom tablet.

After the update, I can click into System Settings, and I can also click around top-level items, but on subsequent menus, I cannot click anything.

For instance, I cannot access: General>About or General>Software Update

I can understand if there's something wrong with Wacom, but these items also cannot be reached by keyboard navigation.

I can navigate to "About" but cannot open it.

The only way to activate lower menus is to physically open my laptop and use the trackpad there.

Wacom is known to cause issue, yes.

for your third party device—if in doubt search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates…

Contact a third-party vendor - Apple Support

Contact a third-party vendor - Apple Support

ref: Wacom Support

I would suggest acquiring a third party mouse.

How are you you navigating with the keyboard? The macOS Accessibility Full Keyboard Access function, or something else? I can navigate into sub-settings in System Settings just fine with FKA.

Yep.