When enabling Responsive in V13 in converted file V12 the in all display options 
Author: Nigel P.
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I have converted a V12 Pro file (Non Responsive) into V13 (pro).
When previewing the converted V13 item, having set it to Responsive, all Display options appear with the Hamburger (including Desktop, which incidently works if the Responsive Tick is unset and previewed).
Posted on the
Try reducing the size of the buttons in your menu. Or create more space in the menu bar from the template.
If the menu buttons don't fit the menu then x5 automaticly shows the hamburgermenu.
see also:
https://helpcenter.websitex5.com/en/post/157088
or
https://helpcenter.websitex5.com/en/post/155333
Author
Hi John and thanks, I had a 2 row menu, which gave me problems in V12, trying to centre each row in the Menu area but would only Left justify each Menu line. V13 doesnt like 2 line Menu's hence the Hamburger.
By resizing the Menu item size I finally lost the Hamburger. Don't know what to do if my client wants more menu subjects later. The second link was almost the same problem as mine.
Incomedia need to look at the 2 line menu usage in V13 as I cant be the only one of Incomedia's customers who jave / will get this problem.