Unable to maintain values in BRF+ decision tree

[Chris_A24]

Hi guys,

I am trying to create a decision tree in BTF+ but get a strange behavior.
I want to check if an input string has a certain value and set the result object to 1.

I set the standard object NUMBER as the returning value of the tree.
But I am not able to enter a value for this object for the true and false cases.
It is always 0 and I can't change it.

Did I misunderstand the way a decision tree in BRF+ is works?
Or am I missing something necessary for using this kind of tree?

Best regards.