Hi Niels,
Sorry for the delayed update.
Unfortunately, the federation information could not be got correctly due to a recent server-side issue.
Now, our support engineer is working on the issue. After the issue is fixed, I will do the test and update the test result in this thread.
As a tip, I also want to collect some information:
1. Is the certificate on the hybrid server the only third-party SSL certificate you own for your custom domain?
2. If no, what is the name (include the subject name and the subject alternative names) on the other third-party SSL certificates?
3. If yes, is the current environment your production environment? Or, do you just want to test the hybrid deployment with the current SSL certificate?
@David, thanks for posting here. I will update the test result in the thread for your reference.
Thanks,
Claud