Middle name missing in visa appoitment confirmation

I would greatly appreciate a feedback on this…!

The applicant passport has First Name as “Applicant name and Father’s name” together and the DS-160 is filled accordingly. So DS-160 matches with Passport details.
However, on the Visa appointment form, it only shows Applicant First and Last name (Father’s name is missing in the applicant details) as those were the two things asked while creating profile on new website.

Has anybody experienced H1B dropbox appointment recently with such scenario?
Do the VAC officer understand such change, update the middle name in confirmation and processes the application?