diff --git a/app/Console/Commands/Support/GmailDiagnoseCommand.php b/app/Console/Commands/Support/GmailDiagnoseCommand.php
new file mode 100644
index 000000000..0f01203c5
--- /dev/null
+++ b/app/Console/Commands/Support/GmailDiagnoseCommand.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace App\Console\Commands\Support;
+
+use App\Models\Support\SupportCase;
+use App\Services\Support\Gmail\GmailConnector;
+use App\Services\Support\Gmail\SupportGmailPollQuery;
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\DB;
+
+class GmailDiagnoseCommand extends Command
+{
+    protected $signature = 'support:gmail:diagnose';
+
+    protected $description = 'Debug why support Gmail tickets are not processing (poll query, recent cases, failed jobs).';
+
+    public function handle(GmailConnector $connector): int
+    {
+        $this->line(json_encode([
+            'enabled' => (bool) config('support_gmail.enabled'),
+            'dry_run' => (bool) config('support_gmail.dry_run', true),
+            'notify_email' => config('support_gmail.notify_email'),
+            'subject_prefix' => config('support_gmail.subject_prefix'),
+            'label' => config('support_gmail.label'),
+            'effective_poll_query' => SupportGmailPollQuery::resolve(),
+            'queue_connection' => config('queue.default'),
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+        if (!config('support_gmail.enabled')) {
+            $this->warn('SUPPORT_GMAIL_ENABLED is false.');
+
+            return self::FAILURE;
+        }
+
+        try {
+            $result = $connector->fetchNewMessages(
+                mailbox: (string) config('support_gmail.user', 'me'),
+                label: config('support_gmail.label'),
+                query: SupportGmailPollQuery::resolve(),
+                sinceHistoryId: null,
+                max: 5,
+            );
+
+            $preview = [];
+            foreach ($result['messages'] as $msg) {
+                $preview[] = [
+                    'id' => $msg->id,
+                    'subject' => $msg->subject,
+                    'from' => $msg->from,
+                ];
+            }
+
+            $this->line(json_encode([
+                'gmail_matches' => count($preview),
+                'warnings' => $result['warnings'] ?? [],
+                'messages' => $preview,
+            ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+        } catch (\Throwable $e) {
+            $this->error('Gmail API error: '.$e->getMessage());
+
+            return self::FAILURE;
+        }
+
+        $cases = SupportCase::query()->orderByDesc('id')->limit(5)->get([
+            'id', 'subject', 'status', 'source_channel', 'created_at', 'forwarded_by_email',
+        ]);
+
+        $this->line(json_encode([
+            'recent_support_cases' => $cases->toArray(),
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+        if (DB::getSchemaBuilder()->hasTable('failed_jobs')) {
+            $failed = DB::table('failed_jobs')
+                ->where('payload', 'like', '%ProcessSupportCase%')
+                ->orderByDesc('id')
+                ->limit(3)
+                ->get(['id', 'failed_at']);
+
+            $this->line(json_encode([
+                'failed_support_jobs' => $failed->toArray(),
+            ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+        }
+
+        return self::SUCCESS;
+    }
+}
diff --git a/app/Jobs/Support/ProcessSupportCaseDiagnosticsJob.php b/app/Jobs/Support/ProcessSupportCaseDiagnosticsJob.php
index f129e170b..7b89c60e9 100644
--- a/app/Jobs/Support/ProcessSupportCaseDiagnosticsJob.php
+++ b/app/Jobs/Support/ProcessSupportCaseDiagnosticsJob.php
@@ -66,7 +66,7 @@ public function handle(
             'correlation_id' => $case->correlation_id,
         ]);
 
-        ProcessSupportCaseResolutionJob::dispatch($case->id);
+        ProcessSupportCaseResolutionJob::dispatchSync($case->id);
     }
 }
 
diff --git a/app/Jobs/Support/ProcessSupportCaseTriageJob.php b/app/Jobs/Support/ProcessSupportCaseTriageJob.php
index 3da1e8b3f..5022cfd11 100644
--- a/app/Jobs/Support/ProcessSupportCaseTriageJob.php
+++ b/app/Jobs/Support/ProcessSupportCaseTriageJob.php
@@ -51,7 +51,7 @@ public function handle(TriageAgentService $triage, SupportActionLogger $logger):
             correlationId: $case->correlation_id,
         );
 
-        ProcessSupportCaseDiagnosticsJob::dispatch($case->id);
+        ProcessSupportCaseDiagnosticsJob::dispatchSync($case->id);
     }
 }
 
diff --git a/app/Services/Support/Gmail/GmailIngestService.php b/app/Services/Support/Gmail/GmailIngestService.php
index 0ea460441..a9d3ca3f3 100644
--- a/app/Services/Support/Gmail/GmailIngestService.php
+++ b/app/Services/Support/Gmail/GmailIngestService.php
@@ -114,7 +114,8 @@ public function pollAndIngest(int $max = 25): array
                         correlationId: $correlationId,
                     );
 
-                    ProcessSupportCaseTriageJob::dispatch($case->id);
+                    // Run pipeline synchronously so scheduler poll does not depend on queue workers.
+                    ProcessSupportCaseTriageJob::dispatchSync($case->id);
                 } else {
                     $duplicates++;
                 }