We just learned from a parent that the Organization Manager system in my.scouting was sending out welcome letters even though the checkbox was not checked. As the message does not show up without a check in the box we were unaware that (1) the messages were being sent, and (2) the welcome message was three years old. For some reason the welcome message check box is not working. (Google Chrome/Extension/Windows 10)
Best thing to do is report it to your Council so they can send in a membercare ticket on the issue @RobertAcker