1 files changed, 8 insertions, 2 deletions
diff --git a/source/blender/blenkernel/BKE_pbvh_pixels.hh b/source/blender/blenkernel/BKE_pbvh_pixels.hh
index e73950e6299..ad8eca2b36f 100644
--- a/source/blender/blenkernel/BKE_pbvh_pixels.hh
+++ b/source/blender/blenkernel/BKE_pbvh_pixels.hh
@@ -186,8 +186,14 @@ struct NodeData {
   {
     UDIMTilePixels *tile = find_tile_data(image_tile);
     if (tile && tile->flags.dirty) {
-      BKE_image_partial_update_mark_region(
-          &image, image_tile.image_tile, &image_buffer, &tile->dirty_region);
+      if (image_buffer.planes == 8) {
+        image_buffer.planes = 32;
+        BKE_image_partial_update_mark_full_update(&image);
+      }
+      else {
+        BKE_image_partial_update_mark_region(
+            &image, image_tile.image_tile, &image_buffer, &tile->dirty_region);
+      }
       tile->clear_dirty();
     }
   }