Hello Mick! I informed developers about the first issue. Regarding the second, could you clarify what do you mean by that you are unable to use the tenant admin credentials? You used them but they did not work or you do not have such an opportunity? If the second, why you won't use the option with uploading the app into your app catalogue?
Mick, to upgrade HelpDesk without global admin credentials, please ensure that you followed this instruction. I have just tested it and updated my instance successfully. Once you uploaded the package, you need to hit the "Upgrade" button one more time - that will start the process.
I now have global admin and this does not work either, it says package found enter tenant admin which i do but it just goes around in a circle asking for credentials again, I have also disabled MFA as a precaution on my admin account to no avail,
I have HD tickets mounting up and need a resolution ASAP please,
Mick, please share the list of your sites. The developers will force the update process for them so you will be able to finish it independently of the KB issue.