After successfully upgrading in dev to 21.2.12 cannot log into CAPC it keeps returning me to the login screen.
Using correct credentials keeps going back to login screen
Release : 21.2
21.2.12 has changes to make sure we use Web Site Scheme/Host/Port in all URLs we generate for redirection. If the URL is for 1 hostname but Web Site Host is different, then cookie mismatch can happen and you do not get logged in and will get returned to the login screen.
As of 21.2.12 you need to use the same value set for Web Site Host in SsoConfig in the login URL for the NetOpsPortal. If you do not it will not log you in and will return you to the login prompt.