Just in addition of the announcements made to us for upgrading the version of Mendix Studio Pro to 9.24+, I would like to add some comments here in this space for everyone now considering upgrading to such versions: after converting the project in-place, check the versions and release notes of the already installed Marketplace modules to see if they also need to be updated.
In our case, our team previously had an issue when upgrading a project due to not also updating the OIDC SSO Marketplace module for the Okta Integration that comes with Starter App template. We were having issues with the login at the published application and we weren't aware that the root cause was not updating the module's version until we checked the Marketplace module's releases notes:
This is only a heads-up to remember to update the necessary Marketplace modules in your projects, thanks!
Yes, we also faced this issue. I spent a lot time to find the reason and at last know that upgrading the OIDC component can solve the problem.