Question
Adding a new custom data type as rule input to an interface not showing its sub-entries?
When adding a new custom data type as a rule input to interface, Appian does not recognize its entries:

Where my yellow circle is, I expect a "plus" symbol, and instead of the last "null" I should see something like [processStepId=,processStepName=,...] but I don't. What do I overlook?
Here the configuration of the first and last rule inputs, respectively:

