Are you using a separate print set up step just before each print step to specify the paper sizes?
Thanks for responding!
I have tried it using a separate print set up step just before each print step and the results are the same.
I have also tried using two separate print scripts and the results are the same. It seems like something keeps changing the "last used" settings to the default.
What version of FileMaker are you using? And is it hosted over a network?
While I haven't used it, there is a plug in called MyFMButler that offers more specific, scriptable control of the printing process so if all else fails, you can explore that option here.