WHD not giving option for OAUTH when setting up Incoming Email

Just installed WHD version 12.7.0 - Build #12.7.0.407 and I'm trying to setup my Incoming email to use Office 365

But when I select the option for Exchange/Office 365, I am not being given the option to select OAuth

I've been following your guide here: https://documentation.solarwinds.com/en/success_center/whd/content/helpdeskconfigureincomingemailaccountoffice365.htm

And I should be seeing this:

Is there something I am missing (I have setup the App Registration is Azure, and the server that WHD sits on (Server 2019) can reach the internet