[Evolution] S/MIME certification from Sectigo (through Comodo)

[Bryan Everly <bryan theeverlys com>]

Hi,

I purchased an individual S/MIME certificate from Comodo (it appears to have been fulfilled by Sectigo) and was able to use it successfully in Outlook on Windows 10.  I'm trying to import it into Evolution and I successfully select it, then am prompted for the password (there is none) and then I get no error but the certificate does not show up on the list on screen.  Does anyone have any ideas?

Thanks.