StackSize limit on iOS

[Dan Friedman]

I am trying to produce a landscape PDF on a iPhone…

open inv stack "printingStack"
set the width of stack "printingStack" to (11*72)
set the height of stack "printingStack" to (8.5*72)
answer the width of stack "printingStack" //-------  this returns 414 ??? --------//

I am using LC Business 9.6
I know this was working on a prior version of LC / iOS

Is there some new trick to this?  Or, is there now some limitation on setting the size of a stack to something other than the width of the mobile device?   If so, how do we generate a standard size PDF?

Thanks in advance,
-Dan