Get-Mailbox command showing blank account status

I am trying to run below script to export all users who matched certain criteria and get their details like name, SMPT address, account status, and group membership.

I am able to export, but for very few users whose status is enabled, they get a blank under “AccountStatus”

if you see below examples results here AccountStatus - not displayed

Name               : John Smith
Alias              : Sjohn
Office             : contoso
AccountStatus      :
Internet Users     : True
OWA                : False
Mobile             : True