We use Arena Software but we have an issue with the skeleton. In fact, for each skeleton we calibrate, the shoulders are systematically positioned toward the back of the skeleton.
The markers are posed as indicated on the tutorial and on the website.
The arena version we are using is the 1.6.1000.
you can find in the following links the image relating the skeleton issue :


Do you know the source of this issue?
Thank you in advance
Julien Pousse, Quentin Vidal and Sarah Fdili Alaoui