I have a problem creating a new HTML block for the Shop Mega menu. If I edit the existing Shop Mega menu I have no problem. I’ve exported it as a template, created a new block and imported the saved template. The spacing on the template seems to get corrupted and the I get the what is shown on the attached images. Your original Shop menu is fine. The new one is not. (for testing I have two shop menus) I have then tried creating a completely new menu from scratch and that also does not work. What is really strange is that if I check on the frontend WYSIWYG view it looks fine?? It is the live option that does not work.
I have also checked the role models of the WPBakery as advised in another support post and they are correct.