From your screenshot, I believe this is a bug, try use a Windows 10 device and open the Feedback Hub app and under the category select Windows Server and there file a bug report and explain your issue and you may attach all log files, screenshots and other relevant issues so Windows Server team would be able to investigate. Make sure do not share private and personal information and just share necessary log files and hide personal information.
Windows Server 2019: Cannot add my Intermediate/Root CA in AD CS
Aaradhya Chauhan
111
Reputation points
I created a CA in openssl and all the infrastructure operations take place through the same. I created a .p12 file to import the CA in the newly installed Active Directory Certificate Services (AD CS), as a Standalone CA. Tried importing that PFX in both the cases but although in the initial steps when i typed the import password, it accepted the CA. But, when I proceeded to the final step of importing the CA, it gave an empty error box. Not error codes, just a blank box. Please help me in troubleshooting and fixing the issue.