azure error on memberships (null pointer)

2022-10-20T09:19:01,498: [DefaultQuartzScheduler_Worker-9] ERROR GrouperProvisionerTargetDaoAdapter.logError(239) - []

- Provisioner 'AZURE_AD' (vjk1ych6) Error with provisioner 'AZURE_AD' - 'vjk1ych6' with membership: Mship(groupId: "46d95573-744b-4335-9f8a-095a10609003", matchingAttrs: LinkedHashSet(1): [0]: [id, MultiKey[46d95573-744b-4335-9f8a-095a10609003, null], currentValue: true], exception: java.lang.NullPointerException, provisioned: false, attr[id]: <null>, incrementalDataAction: insert, errorCode: "ERR")

(vjk1ych6): java.lang.NullPointerException

(vjk1ych6):     at java.net.URLEncoder.encode(URLEncoder.java:204)

(vjk1ych6):     at edu.internet2.middleware.grouper.util.GrouperUtil.escapeUrlEncode(GrouperUtil.java:3465)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.azure.GrouperAzureApiCommands.createAzureMemberships(GrouperAzureApiCommands.java:577)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.azure.GrouperAzureTargetDao.insertMemberships(GrouperAzureTargetDao.java:325)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.provisioning.targetDao.GrouperProvisionerTargetDaoAdapter.insertMembershipsHelper(GrouperProvisionerTargetDaoAdapter.java:3681)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.provisioning.targetDao.GrouperProvisionerTargetDaoAdapter.access$2300(GrouperProvisionerTargetDaoAdapter.java:42)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.provisioning.targetDao.GrouperProvisionerTargetDaoAdapter$25.callLogic(GrouperProvisionerTargetDaoAdapter.java:3741)

(vjk1ych6):     at edu.internet2.middleware.grouper.app.provisioning.targetDao.GrouperProvisionerTargetDaoAdapter$25.callLogic(GrouperProvisionerTargetDaoAdapter.java:3735)

(vjk1ych6):     at edu.internet2.middleware.grouper.util.GrouperUtil.executorServiceSubmit(GrouperUtil.java:13915)