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in scoutbook plus he properly shows up in the webelos den
in scoutbook when I goto the webelos den he shows up there also (meaning he shows up twice in scoutbook)
I know his parents re-registered him a couple of days after his expiration earlier this month, so there may be a bug related to that.
He has 2 active memberships in your pack, one in a den and one not in a den. Go to his membership page and put an end date on the membership that is not in a den.