Advised by Brian Ganninger to open a ticket after asking the following question to the community:

https://community.atlassian.com/t5/Sourcetree-questions/Git-tags-that-have-been-removed-via-the-command-line-locally-and/qaq-p/1079876?utm_source=atlcomm&utm_medium=email&utm_campaign=mentions_answer&utm_content=topic

To delete all my local tags I ran `git submodule foreach --recursive 'git tag | xargs git tag -d'`
To fetch all the remote tags `git submodule foreach --recursive git fetch -t`

Ran `git tag -l` to verify that only the tags that should exist still do.

Saw no change in the tags on SourceTree (does not refresh)

Closed SourceTree and reopened it.

Still has phantom tags listed.

If I push from SourceTree the tags that should not be there will be recreated remotely.