Alternative Host link no longer unique?

Usually when I assign myself (an admin account) as an alternative host to my org's webinars, I get a unique join link with the /s/ character for 'start.'

As of this morning, when I tried to do this for multiple webinars, all I could get was a generic zoom.us/join link. I am then prompted to put in a meeting ID and then got bounced to registration. 

I updated Zoom Workplace from 6.4.7 to 6.5.1 but the problem continues. I also tested with a colleagues admin account as alternative host, and they got the same generic /join link

Running on Windows 11

What changed/am I doing wrong?

I would upload screenshots but it says I do not have permission, so you'll just have to believe me.