fix(render): cache settings at batch start so they apply consistently to all scenes

operators.py

@@ -82,7 +82,7 @@ class SCENERENDERER_OT_render_all(bpy.types.Operator):
             bpy.app.handlers.render_cancel.remove(on_render_cancel)
 
     def _render_scene(self, context, scene_name):
-        settings = context.scene.scene_renderer
+        settings = SCENERENDERER_OT_render_all._cached_settings
         scene = bpy.data.scenes.get(scene_name)
         if not scene:
             print(f"  [SKIP] Scene not found: {scene_name}")
@@ -110,26 +110,26 @@ class SCENERENDERER_OT_render_all(bpy.types.Operator):
         r.film_transparent = True
 
         c = scene.cycles
-        c.samples = 1 if settings.test_mode else settings.samples
+        c.samples = 1 if settings["test_mode"] else settings["samples"]
 
-        if settings.exposure != 0.0:
-            scene.view_settings.exposure = settings.exposure
-            scene.cycles.film_exposure = 2.0 ** settings.exposure
-        if settings.look != 'None':
-            scene.view_settings.look = settings.look
+        if settings["exposure"] != 0.0:
+            scene.view_settings.exposure = settings["exposure"]
+            scene.cycles.film_exposure = 2.0 ** settings["exposure"]
+        if settings["look"] != 'None':
+            scene.view_settings.look = settings["look"]
 
-        if settings.test_mode:
+        if settings["test_mode"]:
             r.resolution_percentage = 10
 
         render_dir = bpy.path.abspath("//renders")
-        if settings.test_mode:
+        if settings["test_mode"]:
             render_dir = os.path.join(render_dir, "test")
         os.makedirs(render_dir, exist_ok=True)
 
         safe_name = scene.name.replace("/", "_").replace("\\", "_").replace(":", "_").strip()
         output_path = os.path.join(render_dir, safe_name)
 
-        if settings.skip_existing and os.path.exists(output_path + ".png"):
+        if settings["skip_existing"] and os.path.exists(output_path + ".png"):
             print(f"  [SKIP] Already exists: {safe_name}.png")
             SCENERENDERER_OT_render_all._is_rendering = False
             return
@@ -161,6 +161,17 @@ class SCENERENDERER_OT_render_all(bpy.types.Operator):
 
     def execute(self, context):
         settings = context.scene.scene_renderer
+        
+        # Cache the settings exactly as they were when the user pressed "Render All Scenes".
+        # This prevents the settings from reverting to defaults when Blender switches the active scene context.
+        SCENERENDERER_OT_render_all._cached_settings = {
+            "test_mode": settings.test_mode,
+            "skip_existing": settings.skip_existing,
+            "use_cpu": settings.use_cpu,
+            "samples": settings.samples,
+            "exposure": settings.exposure,
+            "look": settings.look,
+        }
 
         if on_render_complete not in bpy.app.handlers.render_complete:
             bpy.app.handlers.render_complete.append(on_render_complete)