$membership = CRM_Member_BAO_Membership::create($membershipParams, $ids);
$params['contribution'] = CRM_Utils_Array::value('contribution', $membershipParams);
unset($params['lineItems']);
+ // skip line item creation for next interation since line item(s) are already created.
+ $params['skipLineItem'] = TRUE;
$this->_membershipIDs[] = $membership->id;
$createdMemberships[$memType] = $membership;