I have succesfully created an indoor network using the Campus Viewer Indoor Network tools. I can perform a successful only when my 'Stops' reside on the same floor. I cannot produce a successful route when my 'Stops' are on different floors.
Some things to note..
1. I am importing points from another layer to the 'Stops' layer. These imported points have z values and display properly in ArcGIS PRO scene.
2. The points are situated near a Transition layer for stairs.
3. My 'Route' parameters are set to use stairways as a high preference.