Thank you mhertz! Renaming the profile directory worked and deluge recognized the plugin instantly. Copied over the state files, but kept the new core.conf just in case (probably doesn't matter, but easy enough to modify).

Hoping you guys can help me before I pull my remaining hair out. Trying to add ltConfig. I have Deluge running on an Ubuntu headless server, Ubuntu v20.04. Deluge v2.0.3, libtorrent v1.1.13. I access Deluge through the Deluge WebUI. I have added the ltConfig 2.0.0 egg to the plugins older. It shows ...