I'm already on Zorin OS 17 Core BETA. It says that Zorin OS 16 to 17 will be available in the coming weeks. There is no mention of Zorin OS 17 Core BETA to Zorin OS 17 Pro.
If it applies to Zorin OS 17 Core BETA, it's OK I will wait.
I am reasonably confident that it does, since the underlying issue is the backports for Zorin OS 17. But you are right, this should be checked and verified - I will start that process, now.
Yes, some users may have earlier access or no troubles. Still, it is advised to wait until the ZorinGroup announces official Zorin Upgrader Tool support.
I marked your post as the solution since your thread is now solved.
I will continue to point out for all readers, however, that the official word from ZorinGroup on Official Zorin Upgrader support in 17 is not yet given.
Eagerness is understandable, patience is a virtue.
If a user does use the tool prior to official release, then runs into trouble later - the helpers on this forum may not be aware that you used the upgrader ahead of official release which may be the cause... So Please Disclose If You Used the Upgrader Prior to the Official Release.