diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9317db..f81c075 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,11 @@ Activate / deactivate layer opaticty according to prefix
 Activate / deactivate all masks using MA layers
 -->
 
+0.3.1
+
+- fix: renumbering in the right order (since top layers are at bottom of file output)
+- fix: renumering error for the last index
+
 0.3.0
 
 - fix: viewlayer exclude attribution error
diff --git a/__init__.py b/__init__.py
index 310566d..98fc507 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP Render",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (0, 3, 0),
+    "version": (0, 3, 1),
     "blender": (2, 93, 0),
     "location": "View3D",
     "warning": "",
diff --git a/fn.py b/fn.py
index 7febb47..a59145d 100644
--- a/fn.py
+++ b/fn.py
@@ -480,13 +480,21 @@ def delete_numbering(fo): # padding=3
         new = '/'.join(elems)
         fs.path = new
 
-def renumber_keep_existing(fo, offset=10):
+def reverse_fileout_inputs(fo):
+    count = len(fo.inputs)
+    for i in range(count):
+        fo.inputs.move(count-1, i)
+
+def renumber_keep_existing(fo, offset=10, invert=True):
     '''Renumber by keeping existing numbers and inserting new one whenever possible
     Big and ugly function that do the trick nonetheless...
     '''
 
     if fo.type != 'OUTPUT_FILE': return
     ct = 10
+    
+    if invert:
+        reverse_fileout_inputs(fo)
 
     fsl = fo.file_slots
 
@@ -497,6 +505,8 @@ def renumber_keep_existing(fo, offset=10):
         # print('-->', idx, fs.path)
 
         if idx == last_idx: # handle last
+            if get_num(fs) is not None:
+                break
             if idx > 0:
                 prev = fsl[idx-1]
                 num = get_num(prev)
@@ -565,6 +575,8 @@ def renumber_keep_existing(fo, offset=10):
         prev = fs
         ct += offset
 
+    if invert:
+        reverse_fileout_inputs(fo)
 
 def has_channel_color(layer):
     '''Return True if gp_layer.channel_color is different than the default (0.2, 0.2, 0.2) '''