Remove a term from content does not work.

I see that this has been a recurring problem with this module. I have followed the correct setup in rules actions to load a term that exists in the node and then remove that term from the content, but nothing happens when the rule is successfully triggered and processed. I have checked the Rules Debug info for this and there are no errors.

I've even attempted used raw PHP (using the tokens provided by Rules) to attempt to remove the specific term, but that does not do anything either.

Loading a term > adding that term to the content works flawlessly, however. Removing a term on the other hand does nothing.

FYI: I am using an older Drupal core (6.19 - I know it's old, but security aside perhaps this has something to do with the issue). Also, the vocabulary I am experimenting with here is being used by Taxonomy Access Control Lite.