Did the Court of Appeals err in dismissing the appeal on Mathis applicability to Karyea Williams on collateral review?

QUESTION(S) PRESENTED oe 1} Did The Court Of Appeals err by dismissing the appeal of the District Court's reasoning that Mathis was inapplicable . to Karyea Williams on Collateral Review ? . 2) Did the Court Of Appeals err by failing to determine that | the Jerry Jabbari Rhodes, 736 Fed. App’x 375{2018 Mathis vy United States, 136 S. Ct. 2243(2016) can be retroactive under Teague's exception to the general rule of retroactivity ? 3) If Mathis reiterated and clarified Descamps because the : lower courts were erroneously applying the categorical and modified categorical approach at sentencing why should a defendant who was victimized by their erroneous view of the rules not be allowed to have their sentences reduced’? , .