diff --git a/server-rs/crates/api-server/src/editor_project.rs b/server-rs/crates/api-server/src/editor_project.rs
index 05a692290..9d6dd2861 100644
--- a/server-rs/crates/api-server/src/editor_project.rs
+++ b/server-rs/crates/api-server/src/editor_project.rs
@@ -2082,10 +2082,15 @@ pub(crate) async fn generate_editor_image_for_owner(
                     resource: source_record.resource,
                     asset: source_record.asset,
                     project: completed_project,
-                    warning: Some(editor_postprocess_fallback_warning_with_dimension(
-                        "生成任务成功，后处理失败。",
-                        dimension_warning.as_ref(),
-                    )),
+                    // 中文注释：原图安全降级同样要保留此前累积的告警（例如未知 style 的
+                    // unsupported-image-style），不能被后处理降级告警整条覆盖。
+                    warning: merge_editor_generation_warnings(
+                        generation_warning,
+                        Some(editor_postprocess_fallback_warning_with_dimension(
+                            "生成任务成功，后处理失败。",
+                            dimension_warning.as_ref(),
+                        )),
+                    ),
                 },
             ));
         }
@@ -9285,6 +9290,26 @@ mod tests {
         );
     }
 
+    #[test]
+    fn editor_image_generation_returns_never_drop_accumulated_warnings() {
+        let source = include_str!("editor_project.rs");
+        // 中文注释：generation_warning 承载未知 style 的 unsupported-image-style 等
+        // 累积告警，普通图片与角色生成的每一个返回点都必须经 merge 合并；任何
+        // 直接的 `warning: Some(` 都会把此前累积的告警整条覆盖掉。
+        for (start, end) in [
+            (
+                "pub(crate) async fn generate_editor_image_for_owner",
+                "fn editor_image_generation_billing_asset_kind",
+            ),
+            (
+                "async fn generate_editor_icon_spritesheet_for_owner",
+                "fn slice_editor_icon_spritesheet_all",
+            ),
+        ] {
+            assert_function_not_contains(source, start, end, &["warning: Some("]);
+        }
+    }
+
     #[test]
     fn pixel_art_degrade_paths_guard_postprocessed_delivery_dimensions() {
         let source = include_str!("editor_project.rs");
@@ -12229,7 +12254,11 @@ mod tests {
             "complete_editor_canvas_generation",
             "source_record.resource.as_ref()",
             "return Ok(json_success_body",
-            "warning: Some(editor_postprocess_fallback_warning",
+            // 中文注释：原图安全降级必须合并此前累积的告警，而不是整条覆盖，
+            // 同时仍要带上后处理降级告警本身。
+            "warning: merge_editor_generation_warnings(",
+            "generation_warning",
+            "editor_postprocess_fallback_warning",
         ] {
             assert!(
                 dimension_fallback_body.contains(snippet),