There are some inconsistencies with the translation of diṭṭhiyā suppaṭividdhā:
DN 33—this is how it is rendered in most cases I have come across so far. Again in AN4.22:4.4, AN5.47:4.2, AN5.87:1.4, AN5.88:4.5, and AN5.96:1.6.
DN33:3.3.8: Puna caparaṁ, āvuso, bhikkhu bahussuto hoti sutadharo sutasannicayo. Ye te dhammā ādikalyāṇā majjhekalyāṇā pariyosānakalyāṇā sātthā sabyañjanā kevalaparipuṇṇaṁ parisuddhaṁ brahmacariyaṁ abhivadanti, tathārūpāssa dhammā bahussutā honti dhātā vacasā paricitā manasānupekkhitā diṭṭhiyā suppaṭividdhā.
DN33:3.3.8: Furthermore, a mendicant is very learned, remembering and keeping what they’ve learned. These teachings are good in the beginning, good in the middle, and good in the end, meaningful and well-phrased, describing a spiritual practice that’s entirely full and pure. They are very learned in such teachings, remembering them, reinforcing them by recitation, mentally scrutinizing them, and comprehending them theoretically.
One variant in AN5.88 where the Pali has a variant (which seems to be an incorrect transmission). English also has a different rendering:
AN5.88:2.5: bahussuto hoti sutadharo sutasannicayo, ye te dhammā ādikalyāṇā majjhekalyāṇā pariyosānakalyāṇā sātthaṁ sabyañjanaṁ kevalaparipuṇṇaṁ parisuddhaṁ brahmacariyaṁ abhivadanti, tathārūpāssa dhammā bahussutā honti dhātā vacasā paricitā manasānupekkhitā diṭṭhiyā appaṭividdhā;
AN5.88:2.5: They’re very learned, remembering and keeping what they’ve learned. These teachings are good in the beginning, good in the middle, and good in the end, meaningful and well-phrased, describing a spiritual practice that’s entirely full and pure. They are very learned in such teachings, remembering them, reinforcing them by recitation, mentally scrutinizing them, and understanding them with view.
Another variant translation in AN 5.110:
AN5.110:1.4: bahussuto hoti …pe… diṭṭhiyā suppaṭividdhā;
AN5.110:1.4: They’re very learned, remembering and keeping what they’ve learned. These teachings are good in the beginning, good in the middle, and good in the end, meaningful and well-phrased, describing a spiritual practice that’s totally full and pure. They are very learned in such teachings, remembering them, reciting them, mentally scrutinizing them, and understanding them with right view.