error in "already subscribed" e-mail message

I’m just trying out this plugin and came across something that’s not working for me. When subscribing an e-mail address that already exists, this message is displayed:
<e-mail address> is already subscribed to the list. Click Here to send an email to update your profile.

The e-mail message sent via the Click Here link contains a bad address in the “Update Profile Info” link. Here’s the link location from the e-mail: https://org/?utm_source=email&utm_campaign=news.us8.list-manage1.com/profile?u=aa1da085e0b965728cbbb8a68&id=15c23187e1&e=71e8d00113

I could work around this by always updating the subscriber info, but I don’t see a way to enable that setting via the UI. I could also define $update_existing to true and not prompt for the e-mail message, but it’s obviously not ideal.

Is this just me, or is this Profile Update feature not working right?

https://www.ads-software.com/plugins/easy-theme-and-plugin-upgrades/