When I add a list to a contact an existing list will disappear. For example I have a contact who is in three lists. I add a fourth list and one of the existing lists will disappear. Sometimes if I get out of that contact screen and come back in the missing list will reappear but sometime it won't.
I'm so sorry to hear this is happening! We have seen cases where adding or removing lists through the contact profile can cause lists to disappear. However this tends to happen in accounts where there are over 100 lists stored in it. I can see this is not the case as you do not have more than 100 lists. I have also tested with an address of my own and was unable to replicate the same experience. Please email us at social_support(at)constantcontact(dot)com with a reference to this post, your username, and the following details:
Once we get this information we would be happy to troubleshoot further!
I apologize you too are having this experience. What exactly are you experiencing? Are you seeing these lists disappear when adding your contact to a list that's attached to an automated series? Having these details along with any example contact you may have information to have. Please send us these troubleshooting details by email to social_support(at)constantcontact(dot)com with a reference to this post and your username. In the meantime, as mentioned previously in this thread, we have seen this happen in accounts with over 100 lists. I have taken a look at your account and can see your account does in fact have more than this amount in it. For these experiences there are a few workarounds we suggest:
Are you able to add your contact to the correct list through one of these steps?