Numpy data shifting?

[[Ch...]]

We are trying to read the image pixel data, but we noticed something strange. The Numpy image array seems to be shifting by 12 pixels between each stage. Is this a bug? And/or as anyone experienced this and found a solution to normalize the drift? 

 

image = np.array (gom.app.project.measurement_series['Deformation 1'].measurements['D1'].images['left camera'].data.rgb)

 

for S in gom.app.project.stages:

    print(S, S.index)

    cv2.imshow('Frame', image[S.index])

    if cv2.waitKey(400) & 0xFF == ord('q'😞  # Waits for 40ms between frames, press 'q' to quit

        break