Tried rebooting and it's something that comes, stays as an issue for ages, then suddenly works again, before then starting once more. All apps, all windows.
A few methods round it appear to be to click into different menu headers and then quickly back to the one you want. Don't know if it's just my imagination, but doing this particularly with the Apple menu seems to do the trick.
A few methods round it appear to be to click into different menu headers and then quickly back to the one you want. Don't know if it's just my imagination, but doing this particularly with the Apple menu seems to do the trick.