Thanks for this - i have switched now to this. I was using helix 3 due to another component, from another dev, only working with bootstrap 3, it was complicated but ive ditched that now and now everything works with bootstrap 4 so im good with Helix Ultimate.
The new styles seem to work, however I have a new problem, when enabling SP Page builder for my Sellacious styling the side colums (left and right positions) becomes fluid and no margins, and stretches to the edge of the page. So its like the addons are over-riding the main page styling.
Thanks. I've been testing with different templates also, but still get the same result. I've added login details to this reply so you could take a look. Basically the styling is not resolving correctly.
This is a test site, so any changes I'll need to update the main site with.
There are a couple of other problems:
If i add features to product (from settings). When I add the list of features, they dont save, when clicking save (fields become blank)
Often products will show as inactive, after creating a product.