diff --git a/OBIA/segmentation.py b/OBIA/segmentation.py
index 78973fdd84356874f5ac4986d05db4f5fbac8690..cb68a62c90579d0d515384a9b30a9b206a1a0592 100644
--- a/OBIA/segmentation.py
+++ b/OBIA/segmentation.py
@@ -15,7 +15,8 @@ from tqdm import tqdm
 import numpy as np
 
 # GLOBAL
-node_size = 700 # size of a graph node (=pixel) in GRM
+# changed from the original 700 to limit OOM multiprocessing bug
+node_size = 1000 # size of a graph node (=pixel) in GRM
 
 @dataclass
 class LSGRMParams:
@@ -76,8 +77,9 @@ def grm_process_tile(input_image, params : LSGRMParams, tile_width, tile_height,
     op = regionprops(seg['array'][:,:,0].astype(np.int32))
     to_del = []
     for o in op:
-        if not (tie_lines[0] <= o.bbox[0] < tie_lines[2]
-                and tie_lines[1] <= o.bbox[1] < tie_lines[3]):
+        if not (tie_lines[0] <= o.bbox[0]# < tie_lines[2]
+                and tie_lines[1] <= o.bbox[1]):# < tie_lines[3]):
+            # to_del.append(o.label)
             # This one to check if a potentially deleted object trespass the overlap area,
             # in which case it is kept.
             if not (2*params.margin <= o.bbox[2] < tile_height and
diff --git a/Workflows/operations.py b/Workflows/operations.py
index 4b97e5cd321bfb8f843496ac67160e4200f579c3..43c8f964e47335fea17c1086e07ab07feed6dd4a 100644
--- a/Workflows/operations.py
+++ b/Workflows/operations.py
@@ -11,7 +11,7 @@ def run_segmentation(img, threshold, cw, sw , out_seg,
         os.makedirs(os.path.dirname(out_seg))
     params = OBIA.segmentation.LSGRMParams(threshold, cw, sw, n_first_iter, margin)
     if light:
-        OBIA.segmentation.lsgrm_light(img, params, out_seg, n_proc, memory, roi, force_parallel)
+        OBIA.segmentation.lsgrm_light(img, params, out_seg, n_proc, memory, roi, force_parallel, remove_graph)
     else:
         OBIA.segmentation.lsgrm(img, params, out_seg, n_proc, memory, roi, remove_graph, force_parallel)
     return out_seg