UIAspectRatioConstraint.AspectRatio does not support math operations. It is common to use fractions and ratios when dealing with aspect ratios, so to set the aspect ratio to 16/9 I have to first print it using command line or something then copy paste it into the aspect ratio value
i would use a script inside the instance to calculate whatever and then put the result as the aspect ratio
Looks like the property type is a clamped number, which doesn’t support expressionEval, like many others.
It’s not only for aspect ratio but is probably also for all values that are clamped.
Thanks for the report! I filed a ticket in our internal database.