Just wondering--have they fixed the problem with contact lists?

I am using MS365 and Windows 11 on a new computer.  I had to manually enter all my email contacts because the last computer's hard drive died and took them with it.  So I got done with one of my contact lists and attempted to send an email using the contact list--150 emails.  Finished the message, put the contact list into BCC and nothing.  Checked the contact list title--says there's no addresses in it.  Redid the contact list--same thing.  Finally downloaded my email addresses to the old Outlook and sent the message that way--needed to get it out today.  Did anyone get this figured out yet?