The request is not working correctly, what's the problem?

Question

SQL

SELECT *
  FROM `t1`
  JOIN `t2`
    ON `t1`.`pav` = `t2`.`pac`
  RIGHT JOIN `t3`
    ON `t3`.`objid` = `t2`.`objid`
  WHERE
    `t2`.`objid` IS NULL
    OR `t2`.`date` > '.....'

All rows from table t3 are not displayed. 3 lines are displayed, although there are 95 of them in table t3

Answer 1

where t2.objid is null or (t2.date > '.....')
That's why. It's the same condition.