Cookies get deleted even for ignored sites

[Piulinux]

Whenever installing or enabling the extension as well as saving the settings it deletes all Google cookies. Even the cookies associated with the URLs in the exclusion list or with the ignore options, e.g. "Ignore YouTube" get deleted.

Why is that a problem?
Say I want to log into YouTube but not into my Google account on all other sites. So I check "Ignore YouTube" in the settings, add a new YouTube container and tell Multi-Account Containers to always open YouTube in the container.
To log into my account I add "accounts.google.com" to the exclusion list in the Google container settings.
After I log into, I want to remove "accounts.google.com" again from the exclusion list and hit save.
But now also the "youtube.com" cookies got deleted.

Expected
To save the settings and delete all Google-associated cookies except the ones from sites on the exclusion list or from "Ignore..." options.

Result
YouTube cookies got deleted when saving even though "Ignore YouTube" was set.