diff --git a/backend/src/Service/Ingestion/IngestionService.php b/backend/src/Service/Ingestion/IngestionService.php
index 4bc5667..ce0b21f 100644
--- a/backend/src/Service/Ingestion/IngestionService.php
+++ b/backend/src/Service/Ingestion/IngestionService.php
@@ -39,6 +39,13 @@ class IngestionService
         } catch (HighCloudCoverageException $e) {
             $this->logger->info('S2 cloud too high, falling back to Sentinel-3', ['reason' => $e->getMessage()]);
             $this->ingest($bbox, $date, 'Sentinel-3', 'sentinel-3-olci');
+        } catch (\Throwable $e) {
+            // Erreur S2 non liée à la couverture nuageuse (HTTP 4xx/5xx, timeout…)
+            // → tenter S3 plutôt que perdre tout le cycle pour cette zone
+            $this->logger->warning('S2 ingestion error, falling back to Sentinel-3', [
+                'reason' => $e->getMessage(),
+            ]);
+            $this->ingest($bbox, $date, 'Sentinel-3', 'sentinel-3-olci');
         }
     }