diff --git a/app/assets/javascripts/jira_import/components/jira_import_form.vue b/app/assets/javascripts/jira_import/components/jira_import_form.vue
index 6f2fb41ca15e62a0b0223340e8c594f14bb62da4..e7816f6d1877817f9f9a00776c41d3d797e58e74 100644
--- a/app/assets/javascripts/jira_import/components/jira_import_form.vue
+++ b/app/assets/javascripts/jira_import/components/jira_import_form.vue
@@ -168,10 +168,12 @@ export default {
         })
         .then(({ data }) => {
           this.users =
-            data?.project?.projectMembers?.nodes?.map(({ user }) => ({
-              ...user,
-              id: getIdFromGraphQLId(user.id),
-            })) || [];
+            data?.project?.projectMembers?.nodes
+              .filter((x) => x?.user)
+              .map(({ user }) => ({
+                ...user,
+                id: getIdFromGraphQLId(user.id),
+              })) || [];
           return this.users;
         })
         .finally(() => {
diff --git a/app/assets/javascripts/vue_shared/components/user_select/user_select.vue b/app/assets/javascripts/vue_shared/components/user_select/user_select.vue
index 94166d74c1abf6bdf445960af8df17cd5ea7b1d4..04e44aa2ed191bb25ac445489e3dfd921f8483ab 100644
--- a/app/assets/javascripts/vue_shared/components/user_select/user_select.vue
+++ b/app/assets/javascripts/vue_shared/components/user_select/user_select.vue
@@ -113,7 +113,7 @@ export default {
       update(data) {
         // TODO Remove null filter (BE fix required)
         // https://gitlab.com/gitlab-org/gitlab/-/issues/329750
-        return data.workspace?.users?.nodes.filter((x) => x).map(({ user }) => user) || [];
+        return data.workspace?.users?.nodes.filter((x) => x?.user).map(({ user }) => user) || [];
       },
       debounce: ASSIGNEES_DEBOUNCE_DELAY,
       error({ graphQLErrors }) {
diff --git a/ee/app/assets/javascripts/boards/components/epic_filtered_search.vue b/ee/app/assets/javascripts/boards/components/epic_filtered_search.vue
index 29a9b7425a4025f192d5bdb62324a9da4932956f..882d717962b8cc2e5d3162381380d6ed69fdf8ed 100644
--- a/ee/app/assets/javascripts/boards/components/epic_filtered_search.vue
+++ b/ee/app/assets/javascripts/boards/components/epic_filtered_search.vue
@@ -60,7 +60,9 @@ export default {
             search: authorsSearchTerm,
           },
         })
-        .then(({ data }) => data.group?.groupMembers.nodes.map((item) => item.user));
+        .then(({ data }) =>
+          data.group?.groupMembers.nodes.filter((x) => x?.user).map(({ user }) => user),
+        );
     },
     fetchLabels(labelSearchTerm) {
       return this.$apollo
diff --git a/ee/app/assets/javascripts/boards/stores/actions.js b/ee/app/assets/javascripts/boards/stores/actions.js
index a18a31f258452b94f712c9def26f2f37748974b3..0802954cf1841a7dce3899dcda6f13191c24a099 100644
--- a/ee/app/assets/javascripts/boards/stores/actions.js
+++ b/ee/app/assets/javascripts/boards/stores/actions.js
@@ -535,14 +535,17 @@ export default {
       })
       .then(({ data }) => {
         const [firstError] = data.workspace.errors || [];
-        const assignees = data.workspace.assignees.nodes;
+        const assignees = data.workspace.assignees.nodes
+          .filter((x) => x?.user)
+          .map(({ user }) => user);
 
         if (firstError) {
           throw new Error(firstError);
         }
         commit(
           types.RECEIVE_ASSIGNEES_SUCCESS,
-          assignees.map(({ user }) => user),
+          // User field is nullable and we only want to display non-null users
+          assignees,
         );
       })
       .catch((e) => {
diff --git a/ee/app/assets/javascripts/oncall_schedules/components/rotations/components/add_edit_rotation_modal.vue b/ee/app/assets/javascripts/oncall_schedules/components/rotations/components/add_edit_rotation_modal.vue
index 3bc61e4b119bc6f24c29069d33a8474944ba1c30..e298e670047f3b18461379ae217642c6b796775f 100644
--- a/ee/app/assets/javascripts/oncall_schedules/components/rotations/components/add_edit_rotation_modal.vue
+++ b/ee/app/assets/javascripts/oncall_schedules/components/rotations/components/add_edit_rotation_modal.vue
@@ -94,7 +94,7 @@ export default {
         };
       },
       update({ project: { projectMembers: { nodes = [] } = {} } = {} } = {}) {
-        return nodes.map(({ user }) => ({ ...user }));
+        return nodes.filter((x) => x?.user).map(({ user }) => ({ ...user }));
       },
       error(error) {
         this.error = error;