Mega Menu Maximum pages/links? (Forget Nav Location)

I’m having issues with mega menu option. It worked like a charm last couple of weeks. We made one big Mega Menu. In fact we have now 44 of 45 pages working in the headermenu.
Today we wanted to create another link within this menu. But somehow I won’t show up. I think there is a limit to how much links you use within the menu in Wordprees or Enfold. Or what?
Also, when this occurs, enfold theme forgets where the correct location of the headermenu is. I have to re-assign everytime.
What’s the solution to this problem?

In part it looks like another custumer on this support page. But that topic is closed already.

“I have several links in my main nav. They all work when the mega menu option is not chosen. I’m able to add, delete, move pages around.
But I want to use mega menu. So the first thing I do is make sure I have correct location chosen. I choose mega menu make changes, add, and move pages around hit save. Go to location again and my main nav is missing. I select it from drop down again. I go back to see my nav structure and half the navigation is missing.
I’ve tried, deleting pages, recreate pages, turned off plugins, cleared cache, called hosting (no issues on there end) and can’t get it to stick. My theme is up to date.
At times I’ve been able to get the top nav to work perfectly, the mega menu works but I add one page, and it deletes half my nav and forget where the navigation should be located.”