i am using polylang.
i have two issues. on the default language the submenus appear when one click and on the others it appears on hover.
second issue: the bootstrap arrows disappear on the default language and appear on other languages.
it is in development on a local machine so i have no url. in any case, it was easy to hide the bootstrap arrows with css.
regarding the click vs hover. it is still there. but it is not crucial cause it only act like so on desktop not mobile.