Just a thought, does the right eye have a lock than needs to be engaged? The new Swarovski EL MUST have the right side diopter adjustment LOCKED or the right eye will need to be focused each time you change distance on the left side.
FYI. I had a pair of Fujinon binoculars that needed warranty repair. They had me send it to Baker Marine in San Diego. I was not very happy. They did fix the issue, but the binoculars were all scratched up. It looked like they used a vice grips and ill fitting screw driver on it.