diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0e6bf2..2cb6d01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,7 +17,7 @@ Activate / deactivate all masks using MA layers
 0.6.8
 
 - feat: New multi-scene viewlayer inspection button
-- fix: revert back export json crop to use GP names when available
+- fix: revert back export json crop to use GP names when available with better check
 
 0.6.7
 
diff --git a/fn.py b/fn.py
index 8d6f73e..2113f0b 100644
--- a/fn.py
+++ b/fn.py
@@ -786,6 +786,23 @@ def get_bbox_3d(ob):
     bbox_coords = ob.bound_box
     return [ob.matrix_world @ Vector(b) for b in bbox_coords]
 
+def is_render_included(o, scn):
+    '''return True if object is in at least one non-excluded collection
+    in all passed scene viewlayer
+    '''
+
+    if o.hide_render:
+        return False
+    for vl in scn.view_layers:
+        all_cols = get_collection_childs_recursive(vl.layer_collection)
+        for c in all_cols:
+            print(c.name)
+            if o in c.collection.objects[:]:
+                if not c.exclude:
+                    return True
+    return False
+
+
 def get_crop_pixel_coord(scn):
     # width height probably not needed. might need 
     px_width = (scn.render.border_max_x - scn.render.border_min_x) * scn.render.resolution_x
@@ -828,8 +845,8 @@ def export_crop_to_json():
             ## Only scn name (meaning only one name to refer if multiple GP)
             # coord_dic[scn.name] = scn_border
 
-            ## use name of first found GP :
-            gps = [o for o in scn.objects if o.type == 'GPENCIL']
+            ## use name of first found visible GP (scene name if no visible GP)
+            gps = [o for o in scn.objects if o.type == 'GPENCIL' if is_render_included(o, scn)] # o.visible_get() < only work on active window
             if gps:
                 for ob in gps:
                     coord_dic[ob.name] = scn_border
@@ -1026,18 +1043,24 @@ def set_box_from_selected_objects(scn=None, cam=None, export_json=False):
     _bbox_px = set_border_region_from_coord(coords, margin=30, scn=scn, export_json=export_json)
 
 
-def get_collection_childs_recursive(col, cols=[]):
+def get_collection_childs_recursive(col, cols=[], include_root=True):
     '''return a list of all the sub-collections in passed col'''
+    # force start from fresh list (otherwise same cols list is used at next call)
+    cols = cols or []
+
     for sub in col.children:
         if sub not in cols:
             cols.append(sub)
         if len(sub.children):
             cols = get_collection_childs_recursive(sub, cols)
+    
+    if include_root and col not in cols: # add root col
+        cols.append(col)
+    
     return cols
 
 def unlink_objects_from_scene(oblist, scn):
-    all_col = [scn.collection]
-    all_col += get_collection_childs_recursive(scn.collection)
+    all_col = get_collection_childs_recursive(scn.collection)
     for col in all_col:
         for ob in reversed(col.objects):
             if ob in oblist:
@@ -1075,8 +1098,7 @@ def split_object_to_scene():
     # new.render.filepath = f'/tmp/'
 
     ## unlink unwanted objects from collection
-    all_col = [new.collection]
-    all_col += get_collection_childs_recursive(new.collection)
+    all_col = get_collection_childs_recursive(new.collection)
     for col in all_col:
         for sob in reversed(col.objects):
             if sob.type in ('CAMERA', 'LIGHT'):