diff --git a/src/app/(app)/stls/_components/stl-table.tsx b/src/app/(app)/stls/_components/stl-table.tsx
index d914bb0..8814c55 100644
--- a/src/app/(app)/stls/_components/stl-table.tsx
+++ b/src/app/(app)/stls/_components/stl-table.tsx
@@ -500,14 +500,9 @@ export function StlTable({
               </Badge>
             )}
           </TabsTrigger>
-          <TabsTrigger value="ungrouped" className="gap-1.5">
-            Ungrouped
-            {ungroupedTotalCount > 0 && (
-              <Badge variant="secondary" className="h-5 px-1.5 text-[10px]">
-                {ungroupedTotalCount}
-              </Badge>
-            )}
-          </TabsTrigger>
+          {/* "Ungrouped" tab hidden: the STL list is now flat and grouping is
+              no longer surfaced here. The tab content below is kept (unreachable)
+              to avoid churn; remove it and its data fetch if grouping is dropped. */}
         </TabsList>
 
         <TabsContent value="packages" className="space-y-4">
diff --git a/src/lib/telegram/queries.ts b/src/lib/telegram/queries.ts
index b667101..a1262bd 100644
--- a/src/lib/telegram/queries.ts
+++ b/src/lib/telegram/queries.ts
@@ -135,31 +135,31 @@ export async function listDisplayItems(options: {
   const sortCol = sortBy === "fileName" ? `"fileName"` : sortBy === "fileSize" ? `"fileSize"` : `"indexedAt"`;
   const sortDir = order === "asc" ? "ASC" : "DESC";
 
-  // Step 1: Count display items
+  // NOTE: The STL list is intentionally FLAT — every package is its own display
+  // row regardless of packageGroupId. Grouping is no longer surfaced in this
+  // view (the creator column/filter organizes the list instead). PackageGroup
+  // rows and the manual grouping actions still exist in the DB/UI; they just
+  // don't drive this list's layout anymore.
+
+  // Step 1: Count display items (one per package)
   const countResult = await prisma.$queryRawUnsafe<[{ count: bigint }]>(
-    `SELECT COUNT(*) AS count FROM (
-      SELECT DISTINCT COALESCE(p."packageGroupId", p."id") AS display_id
-      FROM packages p
-      ${whereClause}
-    ) AS display_items`,
+    `SELECT COUNT(*) AS count FROM packages p ${whereClause}`,
     ...params
   );
   const total = Number(countResult[0].count);
 
-  // Step 2: Get display item IDs for this page
+  // Step 2: Get package IDs for this page
   const limitParam = paramIdx++;
   const offsetParam = paramIdx++;
   const displayRows = await prisma.$queryRawUnsafe<
     { display_id: string; display_type: string }[]
   >(
     `SELECT
-      COALESCE(p."packageGroupId", p."id") AS display_id,
-      CASE WHEN p."packageGroupId" IS NOT NULL THEN 'group' ELSE 'package' END AS display_type,
-      MAX(p.${sortCol}) AS sort_value
+      p."id" AS display_id,
+      'package' AS display_type,
+      p.${sortCol} AS sort_value
     FROM packages p
     ${whereClause}
-    GROUP BY COALESCE(p."packageGroupId", p."id"),
-             CASE WHEN p."packageGroupId" IS NOT NULL THEN 'group' ELSE 'package' END
     ORDER BY sort_value ${sortDir}
     LIMIT $${limitParam} OFFSET $${offsetParam}`,
     ...params, limit, (page - 1) * limit
diff --git a/worker/src/worker.ts b/worker/src/worker.ts
index 793ba0b..3c3971f 100644
--- a/worker/src/worker.ts
+++ b/worker/src/worker.ts
@@ -65,7 +65,7 @@ import { readRarContents } from "./archive/rar-reader.js";
 import { read7zContents } from "./archive/sevenz-reader.js";
 import { byteLevelSplit, concatenateFiles } from "./archive/split.js";
 import { uploadToChannel, UploadStallError } from "./upload/channel.js";
-import { processAlbumGroups, processRuleBasedGroups, processTimeWindowGroups, processPatternGroups, processCreatorGroups, processZipPathGroups, processReplyChainGroups, processCaptionGroups, detectGroupingConflicts, type IndexedPackageRef } from "./grouping.js";
+import { processAlbumGroups, detectGroupingConflicts, type IndexedPackageRef } from "./grouping.js";
 import { db } from "./db/client.js";
 import type { TelegramAccount, TelegramChannel } from "@prisma/client";
 import type { Client } from "tdl";
@@ -1479,34 +1479,13 @@ async function processArchiveSets(
       scanResult.photos
     );
 
-    // Auto-grouping passes (gated by per-channel flag)
-    const channelRecord = await db.telegramChannel.findUnique({
-      where: { id: channel.id },
-      select: { autoGroupEnabled: true },
-    });
-
-    if (channelRecord?.autoGroupEnabled !== false) {
-      // Learned rule-based grouping (from manual overrides)
-      await processRuleBasedGroups(channel.id, indexedPackageRefs);
-
-      // Time-window grouping for remaining ungrouped packages
-      await processTimeWindowGroups(channel.id, indexedPackageRefs);
-
-      // Pattern-based grouping (date patterns, project slugs)
-      await processPatternGroups(channel.id, indexedPackageRefs);
-
-      // Creator-based grouping (3+ files from same creator)
-      await processCreatorGroups(channel.id, indexedPackageRefs);
-
-      // ZIP path prefix grouping (shared root folder inside archives)
-      await processZipPathGroups(channel.id, indexedPackageRefs);
-
-      // Reply chain grouping (messages replying to same root)
-      await processReplyChainGroups(channel.id, indexedPackageRefs);
-
-      // Caption fuzzy match grouping
-      await processCaptionGroups(channel.id, indexedPackageRefs);
-    }
+    // Heuristic auto-grouping passes (rule/time/pattern/creator/zip-path/
+    // reply-chain/caption) were removed: the STL view is now a flat list
+    // organized by the creator filter, so automatically inventing groups at
+    // ingestion is no longer wanted. Album grouping above is kept because it
+    // reflects real upload structure (files posted together as one Telegram
+    // album), not a heuristic guess. Existing groups and the manual grouping
+    // actions in the UI are unaffected.
 
     // Check for potential grouping conflicts
     await detectGroupingConflicts(channel.id, indexedPackageRefs);