Removing user from Shared Folder

I have a shared creative cloud foler called "Marketing" that I have shared with 5 people. Within that folder are a bunch of subfolders that we have created to organize our assets. I would like to remove one person and add another to our mail folder so they can have access to all the assets inside. When I click on the 3 dots and hit "Share> Invite" it says, "Unable to invite collaborators. We're sorry, nested sharing is not supported. Please remove collaboratos from containted items before inviting useres here." So then I I thought I would just go into that folder and find folder in there to to remove them from, BUT when I click on the 3 dots and hit "Share> Invite" it says, "Unable to invite collaborators. We're sorry nested sharing is not supported. Please remove collaboratos from the parent folder before inviting users here." If I try and click on just a singe asset, like an InDesing document it will only let me "Share Link". I am the "owner" of the account and I invited all these people originally, so I feel like this is something I should be able to do.