diff --git a/.circleci/config.yml b/.circleci/config.yml
index b49f0029..5ae70314 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -70,9 +70,7 @@ workflows:
             branches:
               only:
                 - develop
-                - fix/challenge-timelines-edit-routes
-                - test/performance-profile
-                - July2022Updates
+                - fix/task-memberId-reset
 
       # Production builds are exectuted only on tagged commits to the
       # master branch.
diff --git a/src/common/helper.js b/src/common/helper.js
index c349ecfb..0db4a781 100644
--- a/src/common/helper.js
+++ b/src/common/helper.js
@@ -889,7 +889,7 @@ async function listChallengesByMember (memberId) {
   // get search is paginated, we need to get all pages' data
   let page = 1
   while (true) {
-    let result = {};
+    let result = {}
     try {
       result = await axios.get(`${config.RESOURCES_API_URL}/${memberId}/challenges`, {
         headers: { Authorization: `Bearer ${token}` },
diff --git a/src/routes.js b/src/routes.js
index 3c778369..b02f79fe 100644
--- a/src/routes.js
+++ b/src/routes.js
@@ -70,7 +70,7 @@ module.exports = {
   '/challenges/:challengeId/statistics': {
     get: {
       controller: 'ChallengeController',
-      method: 'getChallengeStatistics',
+      method: 'getChallengeStatistics'
     }
   },
   '/challenges/:challengeId/notifications': {
diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index ed15a9a7..ee691b2c 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -274,7 +274,7 @@ async function searchChallenges (currentUser, criteria) {
         { wildcard: { name: `*${criteria.search}*` } },
         { wildcard: { name: `${criteria.search}*` } },
         { wildcard: { name: `*${criteria.search}` } },
-        { match_phrase: { tags: criteria.search } },
+        { match_phrase: { tags: criteria.search } }
       ]
     } })
   } else {
@@ -1649,6 +1649,39 @@ async function update (currentUser, challengeId, data, isFull) {
     await validateWinners(data.winners, challengeId)
   }
 
+  // Only m2m tokens are allowed to modify the `task.*` information on a challenge
+  if (!_.isUndefined(_.get(data, 'task')) && !currentUser.isMachine) {
+    if (!_.isUndefined(_.get(challenge, 'task'))) {
+      logger.info(`User ${currentUser.handle || currentUser.sub} is not allowed to modify the task information on challenge ${challengeId}`)
+      data.task = challenge.task
+      logger.info(`Task information on challenge ${challengeId} is reset to ${JSON.stringify(challenge.task)}. Original data: ${JSON.stringify(data.task)}`)
+    } else {
+      delete data.task
+    }
+  }
+
+  // task.memberId goes out of sync due to another processor setting "task.memberId" but subsequent immediate update to the task
+  // will not have the memberId set. So we need to set it using winners to ensure it is always in sync. The proper fix is to correct
+  // the sync issue in the processor. However this is quick fix that works since winner.userId is task.memberId.
+  if (_.get(challenge, 'legacy.pureV5Task') && !_.isUndefined(data.winners)) {
+    const winnerMemberId = _.get(data.winners, '[0].userId')
+    logger.info(`Setting task.memberId to ${winnerMemberId} for challenge ${challengeId}. Task ${_.get(data, 'task')} - ${_.get(challenge, 'task')}`)
+
+    if (winnerMemberId != null && _.get(data, 'task.memberId') !== winnerMemberId) {
+      logger.info(`Task ${challengeId} has a winner ${winnerMemberId}`)
+      data.task = {
+        isTask: true,
+        isAssigned: true,
+        memberId: winnerMemberId
+      }
+      logger.warn(`task.memberId mismatched with winner memberId. task.memberId is updated to ${winnerMemberId}`)
+    } else {
+      logger.info(`task ${challengeId} has no winner set yet.`)
+    }
+  } else {
+    logger.info(`${challengeId} is not a pureV5 challenge or has no winners set yet.`)
+  }
+
   data.updated = moment().utc()
   data.updatedBy = currentUser.handle || currentUser.sub
   const updateDetails = {}
@@ -1709,6 +1742,9 @@ async function update (currentUser, challengeId, data, isFull) {
       op = '$PUT'
     } else if (_.isUndefined(challenge[key]) || challenge[key] !== value) {
       op = '$PUT'
+    } else if (_.get(challenge, 'legacy.pureV5Task') && key === 'task') {
+      // always update task for pureV5 challenges
+      op = '$PUT'
     }
 
     if (op) {
@@ -1848,15 +1884,6 @@ async function update (currentUser, challengeId, data, isFull) {
 
   const { track, type } = await validateChallengeData(_.pick(challenge, ['trackId', 'typeId']))
 
-  // Only m2m tokens are allowed to modify the `task.*` information on a challenge
-  if (!_.isUndefined(_.get(data, 'task')) && !currentUser.isMachine) {
-    if (!_.isUndefined(_.get(challenge, 'task'))) {
-      data.task = challenge.task
-    } else {
-      delete data.task
-    }
-  }
-
   if (_.get(type, 'isTask')) {
     if (!_.isEmpty(_.get(data, 'task.memberId'))) {
       const challengeResources = await helper.getChallengeResources(challengeId)