The way artificial intelligence works is that when errors are made, the AI company makes adjustments to its algorithms to recognize the error(s), adjust the markers and avoid making the same mistakes again.
There are two possible problems. First is that Entrupy's clients (whether companies like Goodwill or individual consumers) don't seem to be notifiying Entrupy of the mistakes and corrections can't be made if Entrupy doesn't know about them. That's the "better case" scenario. The second (and worse) possibility is that Entrupy is notified of errors and doesn't GAS and doesn't correct them.
I know for a fact, that buyers of "authenticated" fakes from Goodwill HAVE returned fake bags to Goodwill and Goodwill has been forced to issue refunds for the returns. Why Goodwill continues to use Entrupy is beyond me, but the problem because further exacerbated when the buyers of fakes (but don't recognize them as fake) list and resell the bags with the inaccurate Entrupy certificates.