https://cases.justia.com/pennsylvania/superior-court/2015-1911-mda-2014.pdf?ts=1441747066
It gets better. Lack of subject matter jurisdiction. (Can be challenged any time).
“Recognizing that approximately 20 years passed from the imposition of the sentence, Appellant argues he is
not barred from raising the instant claim because lack of jurisdiction (and presumably illegality) can be raised at any time. We disagree. ”
It was a subject matter jurisdiction claim.
Read it, it’s enlightening 🙂