Is there any known issue with the raid sign up on the calender?
Some of my guildies can't sign for raids, apparently when the go to sign up it says they are not allowed. all the settings seem to be ok, and this has happened after the additions to the sign up window.

To help troubleshoot this, I'll need to know two things:

1) Which event, in particular, and
2) Which members

Then I can give you some solid answers.