Please allow other organizations users to acess shared folders through IOS onedrive for business app

External User (other organization) is now able to syncronize my shared folders only online (web) or with desktop onedrive for business program, after creating a "guest user" at my organization (azure).

BUT that same external user, which can "See" the folders online and at the desktop, CANNOT see the same folder with de IOS app.

it's not logical