fix

app/Http/Controllers/MediaController.php

@@ -339,17 +339,25 @@ public function filters(Request $request)
     }
     $caseSql .= "WHEN duration > {$this->durationOtherMin()} THEN '120-' END";
 
-    $durations = Media::select(
-            DB::raw("{$caseSql} as duration_range"),
-            DB::raw('COUNT(*) as total')
-        )
-        ->where('duration', '>', 0) // every positive duration falls into a bucket
+    // Counts only for buckets that currently have media.
+    $counts = Media::query()
+        ->select(DB::raw("{$caseSql} as duration_range"), DB::raw('COUNT(*) as total'))
+        ->where('duration', '>', 0)
         ->where(function ($q) {
             $q->where('visibility', 'public')
               ->orWhere('user_id', auth()->id());
         })
         ->groupBy('duration_range')
-        ->get();
+        ->pluck('total', 'duration_range');
+
+    // Always return every range (the UI needs all of them), with 0 when empty.
+    $durations = collect(array_keys($this->durationRanges()))
+        ->push('120-')
+        ->map(fn ($key) => [
+            'duration_range' => $key,
+            'total' => (int) ($counts[$key] ?? 0),
+        ])
+        ->values();
 
     return response()->json([
         'categories'    => $categories,