your login page does not have a Server Validation server behavior.
The validation Show If Behaviors require that there be a Server Validation behavior in place to make them work.
the exclamation marks are probably caused by the Server Validation behavior being missing
Remove the validation show behaviors, then reapply the server validation behavior and the validation show if behaviors.
I ran the Security Assist wizard from Data Bridge and was able to reproduce the problem. I am logging a bug in our bugbase regarding the issue so it can be corrected in the next update. We hope to release an update by early next week to address the issues that have been identified so far including this one.