diff --git a/src/components/ChallengeEditor/AssignedMember-Field/index.js b/src/components/ChallengeEditor/AssignedMember-Field/index.js
index b6ea7b90..4731518d 100644
--- a/src/components/ChallengeEditor/AssignedMember-Field/index.js
+++ b/src/components/ChallengeEditor/AssignedMember-Field/index.js
@@ -8,12 +8,11 @@ import styles from './AssignedMember-Field.module.scss'
 import SelectUserAutocomplete from '../../SelectUserAutocomplete'
 
 const AssignedMemberField = ({ challenge, onChange, assignedMemberDetails, readOnly }) => {
-  const value = challenge.task.memberId ? {
+  const value = assignedMemberDetails ? {
     // if we know assigned member details, then show user `handle`, otherwise fallback to `userId`
-    label: assignedMemberDetails ? assignedMemberDetails.handle : `User id: ${challenge.task.memberId}`,
-    value: challenge.task.memberId
+    label: assignedMemberDetails.handle,
+    value: assignedMemberDetails.userId + ''
   } : null
-
   return (
     <div className={styles.row}>
       <div className={cn(styles.field, styles.col1)}>
diff --git a/src/components/ChallengeEditor/index.js b/src/components/ChallengeEditor/index.js
index 8924578c..f5d5d792 100644
--- a/src/components/ChallengeEditor/index.js
+++ b/src/components/ChallengeEditor/index.js
@@ -310,18 +310,18 @@ class ChallengeEditor extends Component {
     let assignedMemberDetails
 
     if (option && option.value) {
-      newChallenge.task = {
+      /* newChallenge.task = {
         ...oldChallenge.task,
         memberId: option.value
         // TODO uncomment as soon as issue in API is fixed https://github.com/topcoder-platform/challenge-api/issues/272
         // isAssigned: true
-      }
+      } */
       assignedMemberDetails = {
         handle: option.label,
         userId: parseInt(option.value, 10)
       }
     } else {
-      newChallenge.task = _.omit(oldChallenge.task, ['memberId', 'isAssigned'])
+      // newChallenge.task = _.omit(oldChallenge.task, ['memberId', 'isAssigned'])
       assignedMemberDetails = null
     }
 
@@ -851,7 +851,7 @@ class ChallengeEditor extends Component {
   }
 
   async updateAllChallengeInfo (status, cb = () => {}) {
-    const { updateChallengeDetails } = this.props
+    const { updateChallengeDetails, assignedMemberDetails: oldAssignedMember } = this.props
     if (this.state.isSaving) return
     this.setState({ isSaving: true })
     const challenge = this.collectChallengeData(status)
@@ -861,9 +861,17 @@ class ChallengeEditor extends Component {
       const challengeId = this.getCurrentChallengeId()
       const action = await updateChallengeDetails(challengeId, challenge)
       const { copilot: previousCopilot, reviewer: previousReviewer } = this.state.draftChallenge.data
-      const { copilot, reviewer } = this.state.challenge
+      const { challenge: { copilot, reviewer }, assignedMemberDetails: assignedMember } = this.state
       if (copilot) await this.updateResource(challengeId, 'Copilot', copilot, previousCopilot)
       if (reviewer) await this.updateResource(challengeId, 'Reviewer', reviewer, previousReviewer)
+      console.log(oldAssignedMember, 'oldAssignedMember')
+      console.log(assignedMember, 'assignedMember')
+      const oldMemberHandle = _.get(oldAssignedMember, 'handle')
+      // assigned member has been updated
+      if (assignedMember && assignedMember.handle !== oldMemberHandle) {
+        await this.updateResource(challengeId, 'Submitter', assignedMember.handle, oldMemberHandle)
+      }
+      this.updateTimeLastSaved()
 
       const draftChallenge = { data: action.challengeDetails }
       draftChallenge.data.copilot = copilot
@@ -911,11 +919,19 @@ class ChallengeEditor extends Component {
       roleId: resourceRole ? resourceRole.id : null
     }
     if (prevValue) {
-      const oldResource = _.pick(newResource, ['challengeId', 'roleId'])
-      oldResource.memberHandle = prevValue
-      await deleteResource(oldResource)
+      try {
+        const oldResource = _.pick(newResource, ['challengeId', 'roleId'])
+        oldResource.memberHandle = prevValue
+        await deleteResource(oldResource)
+      } catch (err) {
+        const errorMessage = _.get(err, 'response.data.message')
+        // ignore error where the resource does not exist already
+        if (errorMessage.indexOf('doesn\'t have resource with roleId') === -1) {
+          throw err
+        }
+      }
     }
-
+    console.log('creating new resource')
     await createResource(newResource)
   }
 
diff --git a/src/containers/ChallengeEditor/index.js b/src/containers/ChallengeEditor/index.js
index fc7257ee..81831317 100644
--- a/src/containers/ChallengeEditor/index.js
+++ b/src/containers/ChallengeEditor/index.js
@@ -29,6 +29,7 @@ import {
 } from '../../actions/members'
 
 import { connect } from 'react-redux'
+import { SUBMITTER_ROLE_UUID } from '../../config/constants'
 
 class ChallengeEditor extends Component {
   componentDidMount () {
@@ -125,15 +126,21 @@ class ChallengeEditor extends Component {
       projectDetail,
       updateChallengeDetails,
       partiallyUpdateChallengeDetails,
-      createChallenge,
-      members
+      createChallenge
+      // members
     } = this.props
     const challengeId = _.get(match.params, 'challengeId', null)
     if (challengeId && (!challengeDetails || !challengeDetails.id)) {
       return (<Loader />)
     }
-    const assignedMemberId = _.get(challengeDetails, 'task.memberId')
-    const assignedMemberDetails = _.find(members, (member) => member.userId.toString() === assignedMemberId)
+    const submitters = challengeResources && challengeResources.filter(cr => cr.roleId === SUBMITTER_ROLE_UUID)
+    var assignedMemberDetails = null
+    if (submitters && submitters.length === 1) {
+      assignedMemberDetails = {
+        userId: submitters[0].memberId,
+        handle: submitters[0].memberHandle
+      }
+    }
     return <div>
       <Route
         exact
@@ -239,8 +246,8 @@ ChallengeEditor.propTypes = {
   loadMemberDetails: PropTypes.func,
   updateChallengeDetails: PropTypes.func.isRequired,
   partiallyUpdateChallengeDetails: PropTypes.func.isRequired,
-  createChallenge: PropTypes.func.isRequired,
-  members: PropTypes.arrayOf(PropTypes.shape())
+  createChallenge: PropTypes.func.isRequired
+  // members: PropTypes.arrayOf(PropTypes.shape())
 }
 
 const mapStateToProps = ({ projects: { projectDetail }, challenges: { challengeDetails, challengeResources, metadata, isLoading, attachments, failedToLoad }, auth: { token }, members: { members } }) => ({
@@ -251,8 +258,8 @@ const mapStateToProps = ({ projects: { projectDetail }, challenges: { challengeD
   isLoading,
   attachments,
   token,
-  failedToLoad,
-  members
+  failedToLoad
+  // members
 })
 
 const mapDispatchToProps = {