Page redirect action triggered by submit new user registration circumvents confirmation email

Using drupal 6.10 with Actions and Triggers (both in core). I selected 5.x-2.x-dev because I didn't see a 6.x or core option.

If you setup a page redirect action for a custom welcome page when a new user registers, it blocks the email that should be sent as a new user confirmation. Without the email, the user can't set a password and enter the system.

I also have another action tied to the same trigger that sends me an email whenever a new user registers. That works fine, so it seems to be something specifically with the page redirect action.

Does this sound like I've mis-configured or could this be a bug where the action is occurring before the triggering event (i.e. new user register submit) has finished?

Thanks,

Joe