diff --git a/fastlane/metadata/android/en-US/changelogs/419.txt b/fastlane/metadata/android/en-US/changelogs/420.txt
similarity index 100%
rename from fastlane/metadata/android/en-US/changelogs/419.txt
rename to fastlane/metadata/android/en-US/changelogs/420.txt
diff --git a/lib/ui/actions/collection/collection_file_actions.dart b/lib/ui/actions/collection/collection_file_actions.dart
index 232520664..846f56744 100644
--- a/lib/ui/actions/collection/collection_file_actions.dart
+++ b/lib/ui/actions/collection/collection_file_actions.dart
@@ -16,13 +16,15 @@ extension CollectionFileActions on CollectionActions {
     BuildContext bContext,
     Collection collection,
     SelectedFiles selectedFiles,
+    bool removingOthersFile,
   ) async {
     final actionResult = await showActionSheet(
       context: bContext,
       buttons: [
         ButtonWidget(
-          labelText: "Yes, remove",
-          buttonType: ButtonType.neutral,
+          labelText: "Remove",
+          buttonType:
+              removingOthersFile ? ButtonType.critical : ButtonType.neutral,
           buttonSize: ButtonSize.large,
           shouldStickToDarkTheme: true,
           isInAlert: true,
@@ -48,9 +50,11 @@ extension CollectionFileActions on CollectionActions {
           isInAlert: true,
         ),
       ],
-      title: "Remove from album?",
-      body: "Selected items will be removed from this album. Items which are "
-          "only in this album will be moved to Uncategorized.",
+      title: removingOthersFile ? "Remove from album?" : null,
+      body: removingOthersFile
+          ? "Some of the items you are removing were "
+              "added by other people, and you will lose access to them"
+          : "Selected items will be removed from this album",
       actionSheetType: ActionSheetType.defaultActionSheet,
     );
     if (actionResult != null && actionResult == ButtonAction.error) {
diff --git a/lib/ui/sharing/user_avator_widget.dart b/lib/ui/sharing/user_avator_widget.dart
index 18223183d..873cba05a 100644
--- a/lib/ui/sharing/user_avator_widget.dart
+++ b/lib/ui/sharing/user_avator_widget.dart
@@ -26,10 +26,13 @@ class UserAvatarWidget extends StatelessWidget {
     final displayChar = (user.name == null || user.name!.isEmpty)
         ? ((user.email.isEmpty) ? " " : user.email.substring(0, 1))
         : user.name!.substring(0, 1);
-    final randomColor = colorScheme.avatarColors[
-        (user.id ?? 0).remainder(colorScheme.avatarColors.length)];
-    final Color decorationColor =
-        ((user.id ?? -1) == currentUserID) ? Colors.black : randomColor;
+    Color decorationColor;
+    if (user.id == null || user.id! <= 0 || user.id == currentUserID) {
+      decorationColor = Colors.black;
+    } else {
+      decorationColor = colorScheme
+          .avatarColors[(user.id!).remainder(colorScheme.avatarColors.length)];
+    }
 
     final avatarStyle = getAvatarStyle(context, type);
     final double size = avatarStyle.item1;
diff --git a/lib/ui/viewer/actions/file_selection_actions_widget.dart b/lib/ui/viewer/actions/file_selection_actions_widget.dart
index ce1f6aed3..2f2c65a48 100644
--- a/lib/ui/viewer/actions/file_selection_actions_widget.dart
+++ b/lib/ui/viewer/actions/file_selection_actions_widget.dart
@@ -316,10 +316,13 @@ class _FileSelectionActionWidgetState extends State<FileSelectionActionWidget> {
       widget.selectedFiles
           .unSelectAll(split.ownedByOtherUsers.toSet(), skipNotify: true);
     }
+    final bool removingOthersFile =
+        isCollectionOwner && split.ownedByOtherUsers.isNotEmpty;
     await collectionActions.showRemoveFromCollectionSheetV2(
       context,
       widget.collection!,
       widget.selectedFiles,
+      removingOthersFile,
     );
   }
 
diff --git a/lib/ui/viewer/file/thumbnail_widget.dart b/lib/ui/viewer/file/thumbnail_widget.dart
index 14d24bfc2..e5b787465 100644
--- a/lib/ui/viewer/file/thumbnail_widget.dart
+++ b/lib/ui/viewer/file/thumbnail_widget.dart
@@ -10,7 +10,6 @@ import 'package:photos/db/files_db.dart';
 import 'package:photos/db/trash_db.dart';
 import 'package:photos/events/files_updated_event.dart';
 import 'package:photos/events/local_photos_updated_event.dart';
-import 'package:photos/extensions/string_ext.dart';
 import 'package:photos/models/collection.dart';
 import 'package:photos/models/file.dart';
 import 'package:photos/models/file_type.dart';
@@ -128,11 +127,10 @@ class _ThumbnailWidgetState extends State<ThumbnailWidget> {
           );
         } else if (widget.file!.pubMagicMetadata!.uploaderName != null) {
           contentChildren.add(
-            // Use uploadName hashCode as userID so that different uploader
-            // get avatar color
+            // Use -1 as userID for enforcing black avatar color
             OwnerAvatarOverlayIcon(
               User(
-                id: widget.file!.pubMagicMetadata!.uploaderName.sumAsciiValues,
+                id: -1,
                 email: '',
                 name: widget.file!.pubMagicMetadata!.uploaderName,
               ),
diff --git a/pubspec.yaml b/pubspec.yaml
index e88e7e30e..e59413cba 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -12,7 +12,7 @@ description: ente photos application
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 
-version: 0.7.19+419
+version: 0.7.20+420
 
 environment:
   sdk: '>=2.17.0 <3.0.0'