diff --git a/agent/agent.go b/agent/agent.go
index 6e4bd70..b692846 100644
--- a/agent/agent.go
+++ b/agent/agent.go
@@ -550,7 +550,7 @@ func (c *Agent) waitingQueue(ctx context.Context, msg string, weight int, info *
 		return client.MessageResponse{}, fmt.Errorf("failed to create queue: %w", err)
 	}
 
-	if mr.Status == model.StatusPending {
+	if mr.Status == model.StatusPending || mr.Status == model.StatusProcessing {
 		c.logger.Info("watching message from queue", "msg", msg)
 
 		chMr, err := c.queueClient.Watch(ctx, mr.MessageID)
@@ -586,7 +586,7 @@ func (c *Agent) waitingQueue(ctx context.Context, msg string, weight int, info *
 	case model.StatusFailed:
 		return client.MessageResponse{}, fmt.Errorf("%q Queue Error: %s", msg, mr.Data.Error)
 	default:
-		return client.MessageResponse{}, fmt.Errorf("unexpected status %q for message %q", mr.Status, msg)
+		return client.MessageResponse{}, fmt.Errorf("unexpected status %d for message %q", mr.Status, msg)
 	}
 }
 
diff --git a/cache/cache_manifest.go b/cache/cache_manifest.go
index a12db97..c6bc629 100644
--- a/cache/cache_manifest.go
+++ b/cache/cache_manifest.go
@@ -39,7 +39,8 @@ func (c *Cache) RelinkManifest(ctx context.Context, host, image, tag string, blo
 
 func (c *Cache) PutManifestContent(ctx context.Context, host, image, tagOrBlob string, content []byte) (int64, string, string, error) {
 	mt := struct {
-		MediaType string `json:"mediaType"`
+		MediaType string          `json:"mediaType"`
+		Manifests json.RawMessage `json:"manifests"`
 	}{}
 	err := json.Unmarshal(content, &mt)
 	if err != nil {
@@ -48,7 +49,11 @@ func (c *Cache) PutManifestContent(ctx context.Context, host, image, tagOrBlob s
 
 	mediaType := mt.MediaType
 	if mediaType == "" {
-		mediaType = "application/vnd.docker.distribution.manifest.v1+json"
+		if len(mt.Manifests) != 0 {
+			mediaType = "application/vnd.oci.image.index.v1+json"
+		} else {
+			mediaType = "application/vnd.docker.distribution.manifest.v1+json"
+		}
 	}
 
 	h := sha256.New()
@@ -101,7 +106,8 @@ func (c *Cache) GetManifestContent(ctx context.Context, host, image, tagOrBlob s
 	}
 
 	mt := struct {
-		MediaType string `json:"mediaType"`
+		MediaType string          `json:"mediaType"`
+		Manifests json.RawMessage `json:"manifests"`
 	}{}
 	err = json.Unmarshal(content, &mt)
 	if err != nil {
@@ -118,7 +124,11 @@ func (c *Cache) GetManifestContent(ctx context.Context, host, image, tagOrBlob s
 
 	mediaType := mt.MediaType
 	if mediaType == "" {
-		mediaType = "application/vnd.docker.distribution.manifest.v1+json"
+		if len(mt.Manifests) != 0 {
+			mediaType = "application/vnd.oci.image.index.v1+json"
+		} else {
+			mediaType = "application/vnd.docker.distribution.manifest.v1+json"
+		}
 	}
 
 	return content, digest, mediaType, nil