Today I tried to understand the software cause of the error repored in the elog #59275 by Diego. I checked the Python code, used many times. But after a check of images I found that during the 0203clive it's possbile to see a clear images of the Hartmann sensor, while in the 0204clive it seems something was swiched off. Founding this kind of images, the Python application was not able to go ahead. But it's not clear for me why there is this kind of difference in the images.