I have been wresteling with this all day and finally discovered that the issue is with Helix Ultimate.
Joomla 5.3.4
Helix Ultimate 2.1.1 and also on 2.1.3
SP Page Builder 5.4.6
I went to the helix template (shaper_helixultimate - Default) and put in a layout row I lost the Main Navigation and some css.
I thought it was me so I restored from backup.
I entered some custom code in the custon css and it did the same thing I lost the website main navigation and some css
.
So the problem is when something is changed in the helix ultimate template settings - when I make changes and hit save I loose the main navigation and other css.
I don't understand if you have a new coder because I just had bugs in the blog code (see previous post)
I am now going to restore from backup one again.
I am now afraid to update my helix and sp page builder.
This all happened on a live client site.
I tried installing helix 2.1.3 but experienced the same issue.
I wanted to bring this to your attention as I do not know if others are experiencing the same issue.
I do not have the site to show you as I have installed the backup on the client site.
I am not happy :(