provisioning - unable create ondrive with csom -

i create users via code csom since months. assign them license , create 1 drive fill structure of folders , shares points. worked well, in recent weeks provisioning onedrive stops working. means command csom createpersonalsiteenqueuebulk executed without error, however, users onedrive not done , impossible create folders.

if log onto office 365 user account , create ondrive can use csom code create folder , on.

here code executed without error. (48h after onedrive not create)

    _context.authenticationmode = clientauthenticationmode.default;       _context.credentials = new sharepointonlinecredentials (email, getsecurepassword);      profileloader _profileloader = profileloader.getprofileloader (_context);      _profileloader.createpersonalsiteenqueuebulk (emailids);      _profileloader.context.executequery (); 

the questions are:

• where can follow requests put in queue creating onedrives in office 365 administration interface ?

• does methode change ?

• can use parameter in office 365 administration interface force creation of user onedrive when user account created in in office 365?

• is there comdlet create 1 drive ?

thank you

sly