Winston Lutz error number of disks

General
1

Winston Lutz return error: Couldn’t find the minimum number of disks in the image. Found 0; required: 1. I have used WL module before. Not sure if the upgrade caused this or I am doing something wrong. Any help is appreciated. I can visually see the 2x2 box as well as the BBs in the images.
image

2

Hi,
as far as I remember if the BB is to close too the field edge pylinac is not able to analyze the image. You can do the analysis without the problematic image, that should help.

regards
Thomas

3

I was using PyLinac 3.27, and after switching back to version 3.17.0, it is working and returning a pass for the same images.

Thanks,
Mo