diff --git a/lib/shared/dm-ops/dm-op-utils.js b/lib/shared/dm-ops/dm-op-utils.js
--- a/lib/shared/dm-ops/dm-op-utils.js
+++ b/lib/shared/dm-ops/dm-op-utils.js
@@ -8,6 +8,7 @@
 import { type ProcessDMOperationUtilities } from './dm-op-spec.js';
 import { dmOpSpecs } from './dm-op-specs.js';
 import { useProcessAndSendDMOperation } from './process-dm-ops.js';
+import { setMissingDeviceListsActionType } from '../../actions/aux-user-actions.js';
 import { useFindUserIdentities } from '../../actions/find-user-identities-actions.js';
 import { useLoggedInUserInfo } from '../../hooks/account-hooks.js';
 import { useGetLatestMessageEdit } from '../../hooks/latest-message-edit.js';
@@ -44,7 +45,7 @@
 import { updateTypes } from '../../types/update-types-enum.js';
 import type { ClientUpdateInfo } from '../../types/update-types.js';
 import { getContentSigningKey } from '../../utils/crypto-utils.js';
-import { useSelector } from '../../utils/redux-utils.js';
+import { useSelector, useDispatch } from '../../utils/redux-utils.js';
 import { messageSpecs } from '../messages/message-specs.js';
 import { userHasDeviceList } from '../thread-utils.js';
 
@@ -127,6 +128,7 @@
   const utilities = useSendDMOperationUtils();
   const auxUserInfos = useSelector(state => state.auxUserStore.auxUserInfos);
   const getAndUpdateDeviceListsForUsers = useGetAndUpdateDeviceListsForUsers();
+  const dispatch = useDispatch();
 
   const getUsersWithoutDeviceList = React.useCallback(
     (userIDs: $ReadOnlyArray<string>) => {
@@ -156,6 +158,20 @@
         true,
       );
 
+      const missingUsers: $ReadOnlyArray<string> =
+        missingDeviceListsUserIDs.filter(id => !deviceLists[id]);
+      if (missingUsers.length > 0) {
+        dispatch({
+          type: setMissingDeviceListsActionType,
+          payload: {
+            usersMissingFromIdentity: {
+              userIDs: missingUsers,
+              time: Date.now(),
+            },
+          },
+        });
+      }
+
       const updatedPeers: Array<P2PMessageRecipient> = [];
       for (const userID of missingDeviceListsUserIDs) {
         if (deviceLists[userID] && deviceLists[userID].devices.length > 0) {
@@ -169,7 +185,7 @@
       }
       return updatedPeers;
     },
-    [getAndUpdateDeviceListsForUsers, getUsersWithoutDeviceList],
+    [dispatch, getAndUpdateDeviceListsForUsers, getUsersWithoutDeviceList],
   );
 
   return React.useCallback(
diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -42,6 +42,7 @@
   usersWithPersonalThreadSelector,
 } from '../selectors/user-selectors.js';
 import type { AuxUserInfos } from '../types/aux-user-types.js';
+import type { RawDeviceList } from '../types/identity-service-types.js';
 import type {
   RelativeMemberInfo,
   RawThreadInfo,
@@ -1824,10 +1825,11 @@
   userID: string,
   auxUserInfos: AuxUserInfos,
 ): boolean {
-  return (
-    !!auxUserInfos[userID]?.deviceList &&
-    auxUserInfos[userID].deviceList.devices.length > 0
-  );
+  return deviceListIsNonEmpty(auxUserInfos[userID]?.deviceList);
+}
+
+function deviceListIsNonEmpty(deviceList?: RawDeviceList): boolean {
+  return !!deviceList && deviceList.devices.length > 0;
 }
 
 export {
@@ -1898,4 +1900,5 @@
   isMemberActive,
   createThreadTimestamps,
   userHasDeviceList,
+  deviceListIsNonEmpty,
 };