Infoview slideshow restarts from first picture when using automation chain

I've created a custom button on my infoview slideshow. This button is plugged to an automation chain that updates thé picture property : after clicking, the slideshow restarts from the first picture. Vert painfull when validating hindreds of docs. Any solution?
Regards

Reporter: Greg Carlin
E-mail: gregory.carlin@ineat-conseil.fr