diff --git a/native/chat/compose-subchannel.react.js b/native/chat/compose-subchannel.react.js
--- a/native/chat/compose-subchannel.react.js
+++ b/native/chat/compose-subchannel.react.js
@@ -69,8 +69,7 @@
   const tagInputRef = React.useRef();
   const onUnknownErrorAlertAcknowledged = React.useCallback(() => {
     setUsernameInputText('');
-    invariant(tagInputRef.current, 'tagInput should be set');
-    tagInputRef.current.focus();
+    tagInputRef.current?.focus();
   }, []);
 
   const waitingOnThreadIDRef = React.useRef<?string>();
diff --git a/native/chat/settings/add-users-modal.react.js b/native/chat/settings/add-users-modal.react.js
--- a/native/chat/settings/add-users-modal.react.js
+++ b/native/chat/settings/add-users-modal.react.js
@@ -1,6 +1,5 @@
 // @flow
 
-import invariant from 'invariant';
 import * as React from 'react';
 import { View, Text, ActivityIndicator, Alert } from 'react-native';
 
@@ -62,8 +61,7 @@
   const onUnknownErrorAlertAcknowledged = React.useCallback(() => {
     setUsernameInputText('');
     setUserInfoInputArray([]);
-    invariant(tagInputRef.current, 'tagInput should be set');
-    tagInputRef.current.focus();
+    tagInputRef.current?.focus();
   }, []);
 
   const { navigation } = props;
diff --git a/native/profile/relationship-list.react.js b/native/profile/relationship-list.react.js
--- a/native/profile/relationship-list.react.js
+++ b/native/profile/relationship-list.react.js
@@ -205,8 +205,7 @@
   const onUnknownErrorAlertAcknowledged = React.useCallback(() => {
     setCurrentTags([]);
     setSearchInputText('');
-    invariant(tagInputRef.current, 'tagInput should be set');
-    tagInputRef.current.focus();
+    tagInputRef.current?.focus();
   }, []);
 
   const callUpdateRelationships = useServerCall(updateRelationships);