diff --git a/CHANGELOG.md b/CHANGELOG.md
index 127688f..8d13428 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,12 @@ OR always duplicate (safe but heavy scenes...)
 if duplicate, need to "connect" with namespace ('_duprender') or something
 -->
 
+0.2.3
+
+- fix: ui errors
+- fix: scene settings
+- fix: clean nodes
+
 0.2.2
 
 - feat: quick scene switch with a button in `node_editor > view`
diff --git a/OP_clean.py b/OP_clean.py
index 3818790..d757bae 100644
--- a/OP_clean.py
+++ b/OP_clean.py
@@ -117,20 +117,24 @@ class GPEXP_OT_clean_compo_tree(bpy.types.Operator):
 
         if self.reorder_inputs:
             for n in nodes:
-                if n.name.startswith('NG_'):
-                    fn.reorder_inputs(n)
-                    fn.reorder_outputs(n)
+                if n.type != 'GROUP' or not n.name.startswith('NG_'):
+                    continue
+                fn.reorder_inputs(n)
+                fn.reorder_outputs(n)
 
-                    # get output node to reorder output
-                    out = None
-                    for s in n.outputs:
-                        if not s.is_linked:
-                            continue
-                        out = s.links[0].to_node
-                        if out.type == 'OUTPUT_FILE':
-                            break
-                    if out:
-                        fn.reorder_fileout(out, ng=n)
+                # get output node to reorder output
+                out = None
+                for s in n.outputs:
+                    if not s.is_linked:
+                        continue
+                    out = s.links[0].to_node
+                    if out.type == 'OUTPUT_FILE':
+                        break
+                if out:
+                    fn.reorder_fileout(out, ng=n)
+                
+                # Clear input that do not exists
+                fn.clean_nodegroup_inputs(n, skip_existing_pass=True)
         
         if self.fo_clear_disconnected:
             for fo in nodes:
diff --git a/__init__.py b/__init__.py
index 277b935..0daf356 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP exporter",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (0, 2, 2),
+    "version": (0, 2, 3),
     "blender": (2, 93, 0),
     "location": "View3D",
     "warning": "",
diff --git a/fn.py b/fn.py
index 7a2ee3b..ca64ce3 100644
--- a/fn.py
+++ b/fn.py
@@ -28,11 +28,34 @@ def new_aa_node(tree):
     return aa
 
 
+def copy_settings(obj_a, obj_b):
+    exclusion = ['bl_rna', 'id_data', 'identifier','name_property','rna_type','properties', 'stamp_note_text','use_stamp_note',
+     'settingsFilePath', 'settingsStamp', 'select', 'matrix_local', 'matrix_parent_inverse', 
+     'matrix_basis','location','rotation_euler', 'rotation_quaternion', 'rotation_axis_angle', 'scale']
+
+    for attr in dir(obj_a):
+        if attr.startswith('__'):
+            continue
+        if attr in exclusion:
+            continue
+        # print('attr: ', attr)
+        # if obj_a.is_property_readonly(attr): # block when things aren't attribute
+        #     continue
+        try:
+            val = getattr(obj_a, attr)
+        except AttributeError:
+            print(f'cant get {attr}')
+
+        try:
+            setattr(obj_b, attr, val)
+        except:
+            print(f"can't set {attr}")
+
+
 def set_settings(scene=None):
     if not scene:
         scene = bpy.context.scene
     # specify scene settings for these kind of render
-    scene = bpy.context.scene
     scene.eevee.taa_render_samples = 1
     scene.grease_pencil_settings.antialias_threshold = 0
     scene.render.film_transparent = True
@@ -43,12 +66,20 @@ def get_render_scene():
     '''Get / Create a scene named Render'''
     render = bpy.data.scenes.get('Render')
     if not render:
+        current = bpy.context.scene
         render = bpy.data.scenes.new('Render')
+        ## copy original settings over to new scene
+        # copy_settings(current, render) # BAD
+        for attr in ['frame_start', 'frame_end']:
+            setattr(render, attr, getattr(current, attr))
+        copy_settings(current.render, render.render)
         
         ## link cameras (and lights ?)
         for ob in bpy.context.scene.objects:
             if ob.type in ('CAMERA', 'LIGHT'):
                 render.collection.objects.link(ob)
+        
+        render.camera = current.camera
 
         # set adapted render settings (no AA)
         set_settings(render)
@@ -289,12 +320,16 @@ def clear_nodegroup_content_if_disconnected(ngroup):
         if not connect_to_group_input(n) and not connect_to_group_output(n): # is disconnected from both side
             ngroup.nodes.remove(n)
 
-def clean_nodegroup_inputs(ng):
+def clean_nodegroup_inputs(ng, skip_existing_pass=True):
     '''Clear inputs to output of passed nodegroup if not connected'''
     ngroup = ng.node_tree
+    rl_nodes = [n.layer for n in ng.id_data.nodes if n.type == 'R_LAYERS']
     for i in range(len(ng.inputs))[::-1]:
         print(i)
-        if not ng.inputs[i].is_linked: # and not any(x.layer == s.name for x in rl_nodes)
+        if not ng.inputs[i].is_linked:
+            if skip_existing_pass and any(ng.inputs[i].name == x for x in rl_nodes):
+                # a render layer of this name still exists
+                continue
             ngroup.inputs.remove(ngroup.inputs[i])
     
     # clear_nodegroup_content_if_disconnected(ngroup)
diff --git a/ui.py b/ui.py
index a82329b..42a9764 100644
--- a/ui.py
+++ b/ui.py
@@ -40,7 +40,11 @@ class GPEXP_PT_gp_node_ui(Panel):
         
         row = col.row()
         n = context.scene.node_tree.nodes.active
-        row.enabled = n and n.type == 'R_LAYERS' and not n.outputs[0].is_linked
+        if n:
+            row.enabled = n and n.type == 'R_LAYERS' and not n.outputs[0].is_linked
+        else:
+            row.enabled = False
+
         row.operator('gp.reconnect_render_layer', icon='ANIM', text='Reconnect')
 
         col.operator('gp.clean_compo_tree', icon='BRUSHES_ALL', text='Clean Nodes') # NODE_CORNER