diff --git a/lib/reducers/master-reducer.js b/lib/reducers/master-reducer.js
--- a/lib/reducers/master-reducer.js
+++ b/lib/reducers/master-reducer.js
@@ -72,7 +72,7 @@
   };
 
   const [userStore, newUserInconsistencies, userStoreOperations] =
-    reduceUserInfos(state.userStore, action, onStateDifferenceForStaff);
+    reduceUserInfos(state.userStore, action);
 
   const newInconsistencies = [
     ...newEntryInconsistencies,
diff --git a/lib/reducers/user-reducer.js b/lib/reducers/user-reducer.js
--- a/lib/reducers/user-reducer.js
+++ b/lib/reducers/user-reducer.js
@@ -47,8 +47,6 @@
   UserStore,
 } from '../types/user-types.js';
 import { authoritativeKeyserverID } from '../utils/authoritative-keyserver.js';
-import { getMessageForException } from '../utils/errors.js';
-import { assertObjectsAreEqual } from '../utils/objects.js';
 import { relyingOnAuthoritativeKeyserver } from '../utils/services-utils.js';
 
 function reduceCurrentUserInfo(
@@ -178,31 +176,6 @@
   return state;
 }
 
-function assertUserStoresAreEqual(
-  processedUserStore: UserInfos,
-  expectedUserStore: UserInfos,
-  location: string,
-  onStateDifference: (message: string) => mixed,
-) {
-  try {
-    assertObjectsAreEqual(
-      processedUserStore,
-      expectedUserStore,
-      `UserInfos - ${location}`,
-    );
-  } catch (e) {
-    console.log(
-      'Error processing UserStore ops',
-      processedUserStore,
-      expectedUserStore,
-    );
-    const message = `Error processing UserStore ops ${
-      getMessageForException(e) ?? '{no exception message}'
-    }`;
-    onStateDifference(message);
-  }
-}
-
 const { processStoreOperations: processUserStoreOps } = userStoreOpsHandlers;
 
 function generateOpsForUserUpdates(payload: {
@@ -220,7 +193,6 @@
 function reduceUserInfos(
   state: UserStore,
   action: BaseAction,
-  onStateDifference: (message: string) => mixed,
 ): [
   UserStore,
   $ReadOnlyArray<ClientUserInconsistencyReportCreationRequest>,
@@ -240,19 +212,12 @@
       state.userInfos,
       userStoreOps,
     );
-    const updated: UserInfos = { ...state.userInfos, ...newUserInfos };
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      updated,
-      action.type,
-      onStateDifference,
-    );
 
-    if (!_isEqual(state.userInfos)(updated)) {
+    if (!_isEqual(state.userInfos)(processedUserInfos)) {
       return [
         {
           ...state,
-          userInfos: updated,
+          userInfos: processedUserInfos,
         },
         [],
         userStoreOps,
@@ -271,19 +236,13 @@
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      {},
-      action.type,
-      onStateDifference,
-    );
 
     if (Object.keys(state.userInfos).length === 0) {
       return [state, [], []];
     }
     return [
       {
-        userInfos: {},
+        userInfos: processedUserInfos,
       },
       [],
       userStoreOps,
@@ -306,16 +265,11 @@
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      newUserInfos,
-      action.type,
-      onStateDifference,
-    );
-    if (!_isEqual(state.userInfos)(newUserInfos)) {
+
+    if (!_isEqual(state.userInfos)(processedUserInfos)) {
       return [
         {
-          userInfos: newUserInfos,
+          userInfos: processedUserInfos,
         },
         [],
         userStoreOps,
@@ -337,16 +291,10 @@
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      newUserInfos,
-      action.type,
-      onStateDifference,
-    );
 
     return [
       {
-        userInfos: newUserInfos,
+        userInfos: processedUserInfos,
       },
       [],
       userStoreOps,
@@ -355,7 +303,6 @@
     const newUserInfos = _keyBy(userInfo => userInfo.id)(
       action.payload.userInfos,
     );
-    const mergedUserInfos: UserInfos = { ...state.userInfos, ...newUserInfos };
 
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> =
       convertUserInfosToReplaceUserOps(newUserInfos);
@@ -363,18 +310,12 @@
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      mergedUserInfos,
-      action.type,
-      onStateDifference,
-    );
 
-    if (!_isEqual(state.userInfos)(mergedUserInfos)) {
+    if (!_isEqual(state.userInfos)(processedUserInfos)) {
       return [
         {
           ...state,
-          userInfos: mergedUserInfos,
+          userInfos: processedUserInfos,
         },
         [],
         userStoreOps,
@@ -395,32 +336,17 @@
       ...convertUserInfosToReplaceUserOps(newUserInfos),
       ...generateOpsForUserUpdates(action.payload),
     ];
-    const updated = action.payload.updatesResult.newUpdates.reduce(
-      (reducedState, update) => {
-        const { reduceUserInfos: reduceUserInfosUpdate } =
-          updateSpecs[update.type];
-        return reduceUserInfosUpdate
-          ? reduceUserInfosUpdate(reducedState, update)
-          : reducedState;
-      },
-      { ...state.userInfos, ...newUserInfos },
-    );
 
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      updated,
-      action.type,
-      onStateDifference,
-    );
-    if (!_isEqual(state.userInfos)(updated)) {
+
+    if (!_isEqual(state.userInfos)(processedUserInfos)) {
       return [
         {
           ...state,
-          userInfos: updated,
+          userInfos: processedUserInfos,
         },
         [],
         userStoreOps,
@@ -445,17 +371,12 @@
     }
 
     const userStoreOps: UserStoreOperation[] = [];
-    const newUserInfos = { ...state.userInfos };
     if (userInfos) {
       for (const userInfo of userInfos) {
-        newUserInfos[userInfo.id] = userInfo;
         userStoreOps.push({ type: 'replace_user', payload: { ...userInfo } });
       }
     }
     if (deleteUserInfoIDs) {
-      for (const deleteUserInfoID of deleteUserInfoIDs) {
-        delete newUserInfos[deleteUserInfoID];
-      }
       userStoreOps.push({
         type: 'remove_users',
         payload: { ids: deleteUserInfoIDs },
@@ -466,21 +387,15 @@
       state.userInfos,
       userStoreOps,
     );
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      newUserInfos,
-      action.type,
-      onStateDifference,
-    );
 
     const newInconsistencies = stateSyncSpecs.users.findStoreInconsistencies(
       action,
       state.userInfos,
-      newUserInfos,
+      processedUserInfos,
     );
     return [
       {
-        userInfos: newUserInfos,
+        userInfos: processedUserInfos,
       },
       newInconsistencies,
       userStoreOps,
@@ -495,17 +410,11 @@
       state.userInfos,
       userStoreOps,
     );
-    const updated: UserInfos = { ...state.userInfos, ...newUserInfos };
-    assertUserStoresAreEqual(
-      processedUserInfos,
-      updated,
-      action.type,
-      onStateDifference,
-    );
-    const newState = !_isEqual(state.userInfos)(updated)
+
+    const newState = !_isEqual(state.userInfos)(processedUserInfos)
       ? {
           ...state,
-          userInfos: updated,
+          userInfos: processedUserInfos,
         }
       : state;
     return [newState, [], userStoreOps];
@@ -513,15 +422,8 @@
     if (!action.payload.users) {
       return [state, [], []];
     }
-    // Once the functionality is confirmed to work correctly,
-    // we will proceed with returning the users from the payload.
-    assertUserStoresAreEqual(
-      action.payload.users ?? {},
-      state.userInfos,
-      action.type,
-      onStateDifference,
-    );
-    return [state, [], []];
+
+    return [{ userInfos: action.payload.users }, [], []];
   }
 
   return [state, [], []];
diff --git a/native/redux/persist.js b/native/redux/persist.js
--- a/native/redux/persist.js
+++ b/native/redux/persist.js
@@ -138,6 +138,7 @@
   'storeLoaded',
   'dbOpsStore',
   'syncedMetadataStore',
+  'userStore',
 ];
 
 function handleReduxMigrationFailure(oldState: AppState): AppState {
@@ -1199,6 +1200,10 @@
 
     return state;
   },
+  [67]: async (state: AppState) => {
+    const { userStore, ...rest } = state;
+    return rest;
+  },
 };
 
 // After migration 31, we'll no longer want to persist `messageStore.messages`
@@ -1266,7 +1271,7 @@
   storage: AsyncStorage,
   blacklist: persistBlacklist,
   debug: __DEV__,
-  version: 66,
+  version: 67,
   transforms: [
     messageStoreMessagesBlocklistTransform,
     reportStoreTransform,