hi suppprt..

fyi.. we found some problem..

we have installed the theme and also install child theme

when we need do some change on menu..
we go wordpress > appearance > menu.. edit and update.. but appear the menu structure different .. suppose the sub menu and main menu.. all go to main menu level.. 
we try edit again from wordpress > appearance > customize > menu.. edit / update .. is ok .. 

can we know.. is it need do any change for the theme setting / menu .. 
need go customize there to change ?? 

has it set menu... as primacy menu already..

one update the menu... after few hours or next day.. 

if want to edit the menu again.. ie. insert new link or change structure.. move main menu to sub menu ..

after save.. all arrange "Messy".. some duplicate.. or suppose sub menu level move to main menu..
then we try edit at "cusmize > menu" .. edit again ( re-arrange to correct structure ).. and save.. is ok alreay ?
so we want to ask.. if need do any setting for menu or change some thing for theme setting ..
is it got Appearance > customize > xxxxx there update ??