Trying to save ManyToMany relatrionship

When i try to save a many to many relationship i have to following error

Fatal error: Call to a member function getOwner() on a non-object in Doctrine/ORM/Persisters/ManyToManyPersister.php on line 181

It tries to call getOwner on the following array ($mapping)

array(19) {
["fieldName"] => string(10) "privileges"
["joinTable"] => array(4) {
["name"] => string(36) "fsbackend.user_mch_account_privilege"
["schema"] => NULL
["joinColumns"] => array(2) {
[0] => array(6)

{ ["name"] => string(13) "mch_accountid" ["referencedColumnName"] => string(13) "mch_accountid" ["unique"] => bool(false) ["nullable"] => bool(true) ["onDelete"] => NULL ["columnDefinition"] => NULL }

[1] => array(6)

{ ["name"] => string(3) "uid" ["referencedColumnName"] => string(3) "uid" ["unique"] => bool(false) ["nullable"] => bool(true) ["onDelete"] => NULL ["columnDefinition"] => NULL }

}
["inverseJoinColumns"] => array(1) {
[0] => array(6)

{ ["name"] => string(10) "resourceid" ["referencedColumnName"] => string(10) "resourceid" ["unique"] => bool(false) ["nullable"] => bool(true) ["onDelete"] => NULL ["columnDefinition"] => NULL }

}
}
["targetEntity"] => string(21) "Entity\User\Privilege"
["mappedBy"] => NULL
["inversedBy"] => NULL
["cascade"] => array(0) {
}
["indexBy"] => string(10) "resourceid"
["fetch"] => int(2)
["type"] => int(8)
["isOwningSide"] => bool(true)
["sourceEntity"] => string(26) "Entity\Merchant\Membership"
["isCascadeRemove"] => bool(false)
["isCascadePersist"] => bool(false)
["isCascadeRefresh"] => bool(false)
["isCascadeMerge"] => bool(false)
["isCascadeDetach"] => bool(false)
["relationToSourceKeyColumns"] => array(2)

{ ["mch_accountid"] => string(13) "mch_accountid" ["uid"] => string(3) "uid" }

["joinTableColumns"] => array(3)

{ [0] => string(13) "mch_accountid" [1] => string(3) "uid" [2] => string(10) "resourceid" }

["relationToTargetKeyColumns"] => array(1)

{ ["resourceid"] => string(10) "resourceid" }

}