Hi,
I’ve recently noticed an issue on my store where the mobile version of the websites expanding menu icon will not drop down while browsing certain products (those with custom text fields). I’m struggling to find a solution & any help would be greatly appreciated.
I’m using the Debut Theme & have edited the mentioned product’s page code to include a text field.
You should hire a dev to fix your code, it is buggy. The mobile menu probably works fine, but I suspect an error with the product form in theme.js file ([data-product-form] attribute seems to be missing in the page) which could cause other features to not work.
Also, Debut is getting quite old, have you considered switching to a newer theme? You have Dawn as a free option, much more reliable and better code standards.