I am taking an ESRI Training course called getting started with ArcGIS Pro. The Exercise Perform visual analysis of 3d data. In Step 4 i have to change the feature class layer building damaged symbology to 7 classifications but when i do change the classification to 7 the symbology is set to a single classification to which i cannot get out of. Also, the buildingdamaged feature class to do a field calculation for field name damaged i used the arcade script $feature.damaged *25 either the results are 0 or 625. I am unable to finish this exercise to where i am unable to create a 3d layer. I am using ArcGIS Pro 2.1.