I'm newest on FHIR and i'm trying to validate FHIR messages using HAPI FHIR JPA SERVER(3.4.0) and FORGE STU3(19.7) to create profiles structure definitions.
Does it possible to slice an element within other sliced element, on Forge platform? What should be the Discriminator configuration?For example, using 'Parameters' structuredefinition and slice element 'part' within an sliced 'parameter' element.

I've tried to create a Parameters profile where i've setup the parameters element with multiple slices. One of this sliced parameters element has other element 'part' sliced too. For this slicing configuration i've used the discriminator with type 'value' and path 'name'. When i try to validate a message(using JPA SERVER 3.4.0) with this Parameters profile, the 'parameters' slice works well, but for 'part' slice it give me the following error: 'Could not match element (name) for slice..'. In the attachment its possible to see how this slice is configured on Forge.