Unfortunately, I think this is normal. Mine also does the same thing.
To reproduce it:
- bring up the menu with 5 clicks
- try and press the button just enough that it feels like you pressed it, but the led button light does not light up
- on the next press, when you PRESS the button the menu will advance, and when you RELEASE the button, it will advance again
Normally, only the RELEASE of the button should advance the menu.
If you go slow and make sure to press the button all the way in, you can avoid the issue.