Hmm, this is a tricky one.
Can you try re-activating ESS and see if it works with my code?
The problem is that the ESS plugin hijacks links with a hashtag and prevents any further functionality from happening which stops us from being able to close the mobile menu.
This is why I’ve built the smooth scroll into our function that closes the mobile menu,
If the two don’t work together I’m sure I can come up with something 🙂