diff --git a/packages/twenty-front/src/modules/object-record/record-field-list/record-detail-section/relation/components/RecordDetailRelationSectionDropdownToMany.tsx b/packages/twenty-front/src/modules/object-record/record-field-list/record-detail-section/relation/components/RecordDetailRelationSectionDropdownToMany.tsx
index a6538736f4..95949e047b 100644
--- a/packages/twenty-front/src/modules/object-record/record-field-list/record-detail-section/relation/components/RecordDetailRelationSectionDropdownToMany.tsx
+++ b/packages/twenty-front/src/modules/object-record/record-field-list/record-detail-section/relation/components/RecordDetailRelationSectionDropdownToMany.tsx
@@ -24,7 +24,6 @@ import { multipleRecordPickerPickableMorphItemsComponentState } from '@/object-r
 import { multipleRecordPickerSearchFilterComponentState } from '@/object-record/record-picker/multiple-record-picker/states/multipleRecordPickerSearchFilterComponentState';
 import { multipleRecordPickerSearchableObjectMetadataItemsComponentState } from '@/object-record/record-picker/multiple-record-picker/states/multipleRecordPickerSearchableObjectMetadataItemsComponentState';
 import { getRecordFieldCardRelationPickerDropdownId } from '@/object-record/record-show/utils/getRecordFieldCardRelationPickerDropdownId';
-import { recordStoreFamilyState } from '@/object-record/record-store/states/recordStoreFamilyState';
 import { recordStoreFamilySelector } from '@/object-record/record-store/states/selectors/recordStoreFamilySelector';
 import { type ObjectRecord } from '@/object-record/types/ObjectRecord';
 import { buildRecordLabelPayload } from '@/object-record/utils/buildRecordLabelPayload';
@@ -308,33 +307,15 @@ export const RecordDetailRelationSectionDropdownToMany = ({
 
         await createTargetRecord(targetPayload);
 
-        const newJunctionId = v4();
-        const createdJunction = await createJunctionRecord({
-          id: newJunctionId,
+        // The junction is already attached to the source record's field by
+        // useCreateOneRecord's post-optimistic effect; appending it here as
+        // well would render the same target twice until a reload
+        await createJunctionRecord({
+          id: v4(),
           [sourceJoinColumnName]: recordId,
           [targetJoinColumnName]: newTargetId,
         });
 
-        if (isDefined(createdJunction)) {
-          store.set(
-            recordStoreFamilyState.atomFamily(recordId),
-            (currentRecord: ObjectRecord | null | undefined) => {
-              if (!isDefined(currentRecord)) {
-                return currentRecord;
-              }
-              const currentFieldValue = currentRecord[fieldName];
-              const updatedJunctionRecords = Array.isArray(currentFieldValue)
-                ? [...currentFieldValue, createdJunction]
-                : [createdJunction];
-
-              return {
-                ...currentRecord,
-                [fieldName]: updatedJunctionRecords,
-              } as ObjectRecord;
-            },
-          );
-        }
-
         updatePickerState(newTargetId, junctionTargetObjectMetadata.id);
         return;
       }
diff --git a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/components/RelationOneToManyFieldInput.tsx b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/components/RelationOneToManyFieldInput.tsx
index 3d6d103a31..13c6ea1658 100644
--- a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/components/RelationOneToManyFieldInput.tsx
+++ b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/components/RelationOneToManyFieldInput.tsx
@@ -28,8 +28,6 @@ import { hasJunctionConfig } from '@/object-record/record-field/ui/utils/junctio
 import { MultipleRecordPicker } from '@/object-record/record-picker/multiple-record-picker/components/MultipleRecordPicker';
 import { useMultipleRecordPickerPerformSearch } from '@/object-record/record-picker/multiple-record-picker/hooks/useMultipleRecordPickerPerformSearch';
 import { multipleRecordPickerPickableMorphItemsComponentState } from '@/object-record/record-picker/multiple-record-picker/states/multipleRecordPickerPickableMorphItemsComponentState';
-import { recordStoreFamilyState } from '@/object-record/record-store/states/recordStoreFamilyState';
-import { type ObjectRecord } from '@/object-record/types/ObjectRecord';
 import { buildRecordLabelPayload } from '@/object-record/utils/buildRecordLabelPayload';
 import { useAvailableComponentInstanceIdOrThrow } from '@/ui/utilities/state/component-state/hooks/useAvailableComponentInstanceIdOrThrow';
 import { useAtomComponentStateCallbackState } from '@/ui/utilities/state/jotai/hooks/useAtomComponentStateCallbackState';
@@ -238,33 +236,15 @@ export const RelationOneToManyFieldInput = () => {
 
         await createTargetRecord(targetPayload);
 
-        const newJunctionId = v4();
-        const createdJunction = await createJunctionRecord({
-          id: newJunctionId,
+        // The junction is already attached to the source record's field by
+        // useCreateOneRecord's post-optimistic effect; appending it here as
+        // well would render the same target twice until a reload
+        await createJunctionRecord({
+          id: v4(),
           [sourceJoinColumnName]: recordId,
           [targetJoinColumnName]: newTargetId,
         });
 
-        if (isDefined(createdJunction)) {
-          store.set(
-            recordStoreFamilyState.atomFamily(recordId),
-            (currentRecord: ObjectRecord | null | undefined) => {
-              if (!isDefined(currentRecord)) {
-                return currentRecord;
-              }
-              const currentFieldValue = currentRecord[fieldName];
-              const updatedJunctionRecords = Array.isArray(currentFieldValue)
-                ? [...currentFieldValue, createdJunction]
-                : [createdJunction];
-
-              return {
-                ...currentRecord,
-                [fieldName]: updatedJunctionRecords,
-              } as ObjectRecord;
-            },
-          );
-        }
-
         updatePickerState(newTargetId, junctionTargetObjectMetadata.id, [
           junctionTargetObjectMetadata,
         ]);