diff --git a/src/services/app/index.ts b/src/services/app/index.ts
index 3f0f01a42b..0783721731 100644
--- a/src/services/app/index.ts
+++ b/src/services/app/index.ts
@@ -19,6 +19,7 @@ import { songsBuildList } from '@services/i18n/songs';
 import { setSongs } from '@services/recoil/songs';
 import { schedulesBuildHistoryList } from './schedules';
 import { setAssignmentsHistory } from '@services/recoil/schedules';
+import { dbSchedAuxClassUpdate } from '@services/dexie/schedules';
 
 export const loadApp = async () => {
   const appLang = await promiseGetRecoil(appLangState);
@@ -40,6 +41,7 @@ export const loadApp = async () => {
 export const runUpdater = async () => {
   await dbWeekTypeUpdate();
   await dbAssignmentUpdate();
+  await dbSchedAuxClassUpdate();
 };
 
 export const userLogoutSuccess = async () => {
diff --git a/src/services/dexie/schedules.ts b/src/services/dexie/schedules.ts
index 50d3ec4fcd..a40717f941 100644
--- a/src/services/dexie/schedules.ts
+++ b/src/services/dexie/schedules.ts
@@ -33,3 +33,55 @@ export const dbSchedBulkUpdate = async (weeks: SchedWeekType[]) => {
 
   await appDb.sched.bulkUpdate(data);
 };
+
+export const dbSchedAuxClassUpdate = async () => {
+  const schedules = await appDb.sched.toArray();
+
+  const schedulesUpdate: SchedWeekType[] = [];
+
+  for (const schedule of schedules) {
+    const obj = structuredClone(schedule);
+
+    const midweek = obj.midweek_meeting;
+
+    if (Array.isArray(midweek.chairman.aux_class_1)) {
+      midweek.chairman.aux_class_1 = midweek.chairman.aux_class_1[0];
+    }
+
+    if (Array.isArray(midweek.tgw_bible_reading.aux_class_1)) {
+      midweek.tgw_bible_reading.aux_class_1 =
+        midweek.tgw_bible_reading.aux_class_1[0];
+    }
+
+    if (Array.isArray(midweek.tgw_bible_reading.aux_class_2)) {
+      midweek.tgw_bible_reading.aux_class_2 =
+        midweek.tgw_bible_reading.aux_class_2[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part1.aux_class_1)) {
+      midweek.ayf_part1.aux_class_1 = midweek.ayf_part1.aux_class_1[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part1.aux_class_2)) {
+      midweek.ayf_part1.aux_class_2 = midweek.ayf_part1.aux_class_2[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part2.aux_class_1)) {
+      midweek.ayf_part2.aux_class_1 = midweek.ayf_part2.aux_class_1[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part2.aux_class_2)) {
+      midweek.ayf_part2.aux_class_2 = midweek.ayf_part2.aux_class_2[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part3.aux_class_1)) {
+      midweek.ayf_part3.aux_class_1 = midweek.ayf_part3.aux_class_1[0];
+    }
+
+    if (Array.isArray(midweek.ayf_part3.aux_class_2)) {
+      midweek.ayf_part3.aux_class_2 = midweek.ayf_part3.aux_class_2[0];
+    }
+
+    schedulesUpdate.push(obj);
+  }
+};
diff --git a/src/services/worker/backupUtils.ts b/src/services/worker/backupUtils.ts
index eeca8eeaa4..04c419af93 100644
--- a/src/services/worker/backupUtils.ts
+++ b/src/services/worker/backupUtils.ts
@@ -893,6 +893,63 @@ const dbRestoreSchedules = async (
         const newItem = structuredClone(localItem);
         syncFromRemote(newItem, remoteItem);
 
+        const midweek = newItem.midweek_meeting;
+
+        if (Array.isArray(midweek.chairman.aux_class_1)) {
+          midweek.chairman.aux_class_1 =
+            localItem.midweek_meeting.chairman.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.tgw_bible_reading.aux_class_1)) {
+          midweek.tgw_bible_reading.aux_class_1 =
+            localItem.midweek_meeting.tgw_bible_reading.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.tgw_bible_reading.aux_class_2)) {
+          midweek.tgw_bible_reading.aux_class_2 =
+            localItem.midweek_meeting.tgw_bible_reading.aux_class_2;
+        }
+
+        if (Array.isArray(midweek.ayf_part1.aux_class_1)) {
+          midweek.ayf_part1.aux_class_1 =
+            localItem.midweek_meeting.ayf_part1.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.ayf_part1.aux_class_2)) {
+          midweek.ayf_part1.aux_class_2 =
+            localItem.midweek_meeting.ayf_part1.aux_class_2;
+        }
+
+        if (Array.isArray(midweek.ayf_part2.aux_class_1)) {
+          midweek.ayf_part2.aux_class_1 =
+            localItem.midweek_meeting.ayf_part2.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.ayf_part2.aux_class_2)) {
+          midweek.ayf_part2.aux_class_2 =
+            localItem.midweek_meeting.ayf_part2.aux_class_2;
+        }
+
+        if (Array.isArray(midweek.ayf_part3.aux_class_1)) {
+          midweek.ayf_part3.aux_class_1 =
+            localItem.midweek_meeting.ayf_part3.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.ayf_part3.aux_class_2)) {
+          midweek.ayf_part3.aux_class_2 =
+            localItem.midweek_meeting.ayf_part3.aux_class_2;
+        }
+
+        if (Array.isArray(midweek.ayf_part4.aux_class_1)) {
+          midweek.ayf_part4.aux_class_1 =
+            localItem.midweek_meeting.ayf_part4.aux_class_1;
+        }
+
+        if (Array.isArray(midweek.ayf_part4.aux_class_2)) {
+          midweek.ayf_part4.aux_class_2 =
+            localItem.midweek_meeting.ayf_part4.aux_class_2;
+        }
+
         dataToUpdate.push(newItem);
       }
     }