I closed it because "squid transparent mode Ends internet access is open" isn't a bug description, it's more like a random collection of words. There is nothing we can do to fix something that has absolutely no useful information about any kind of problem.
But after seeing Brian's comment, I'm guessing it's probably safe to assume it's in reference to the 2.3 squid transparent proxy issue in a half dozen other threads here, and updated it accordingly. I can easily replicate that problem.
https://redmine.pfsense.org/issues/5869
Leaving this locked as a duplicate of the several other threads on same topic, bump one of the others if you'd like to discuss further.