Thank you for sharing this information.
Your hens are accustomed to laying eggs in their old nest boxes due to familiarity with the location, appearance, and nesting material. Introducing new laying boxes with different materials and potentially in a different location can upset your hens. To transition smoothly, remove the old nest boxes gradually and place the new ones in the same spot. Initially, continue using the previous bedding even with rollaway boxes until the hens adjust to the new setup. Consider using fake eggs in the new boxes to encourage laying. Patience is key as hens thrive on routine and habit, but with time and patience, they can adapt to new habits and make them part of their routine.