diff --git a/src/main/python/main/ayab/engine/communication.py b/src/main/python/main/ayab/engine/communication.py
index 9fc17006..0428ff34 100644
--- a/src/main/python/main/ayab/engine/communication.py
+++ b/src/main/python/main/ayab/engine/communication.py
@@ -174,6 +174,8 @@ def cnf_line_API6(
           color (int): The yarn color to be sent.
           flags (int): The flags sent to the controller.
           line_data (bytes): The bytearray to be sent to needles.
+              The leftmost needle is controlled by the least-significant bit of
+              the first byte.
         """
         if self.__ser is None:
             return
diff --git a/src/main/python/main/ayab/engine/engine.py b/src/main/python/main/ayab/engine/engine.py
index 916445b1..18ec9cb7 100644
--- a/src/main/python/main/ayab/engine/engine.py
+++ b/src/main/python/main/ayab/engine/engine.py
@@ -123,7 +123,7 @@ def knit_config(self, image: Image.Image) -> None:
         self.__logger.debug(self.config.as_dict())
 
         # start to knit with the bottom first
-        image = image.transpose(Image.ROTATE_180)
+        image = image.transpose(Image.FLIP_TOP_BOTTOM)
 
         # TODO: detect if previous conf had the same
         # image to avoid re-generating.
diff --git a/src/main/python/main/ayab/knitprogress.py b/src/main/python/main/ayab/knitprogress.py
index 8b25d1d2..b295b0e3 100644
--- a/src/main/python/main/ayab/knitprogress.py
+++ b/src/main/python/main/ayab/knitprogress.py
@@ -120,7 +120,6 @@ def update_progress(
         columns.append(carriage.symbol + " " + direction.symbol)
 
         # graph line of stitches
-        status.bits.reverse()
         midline = len(status.bits) - midline
 
         table_text = (