So apparently there is an issue with this segment here:
Lines 1375-1384 of class-ms-model-membership.php
case self::PAYMENT_TYPE_RECURRING:
$desc = __( ‘Each %1$s’, MS_TEXT_DOMAIN );
if ( $has_payment ) {
if ( 1 == $this->pay_cycle_repetitions ) { $desc = __( ‘Single payment’, MS_TEXT_DOMAIN );
} elseif ( $this->pay_cycle_repetitions > 1 ) {
$desc .= ‘, ‘ . __( ‘%2$s payments’, MS_TEXT_DOMAIN );
}
}