I'd suggest she goes to account.churchofjesuschrist.org. Note that the setting is "Helpful resources, information, training and advice related to my callings". I'd expect her to get different announcements in her new calling. Unless she's missing out on emails other YW leaders are getting, I wouldn't worry about it.
Even then, it may take a day or two before her subscription kicks in.
Also, if she's using a forwarding email address (such as byu.net), the forwarding may cause emails to get dropped.
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