Is it part of Reality Mapping?
An overview of the Reality Mapping toolbox—ArcGIS Pro | Documentation
The licensing information for the various tools can be found herre
Reality Mapping toolbox licensing—ArcGIS Pro | Documentation
I understand that RealityConversionTools.tbx has been deprecated in 2025.0 builds.
However, could you please provide the legacy toolbox (Extract Buildings, Trees, Ground)
from ArcGIS Reality for Pro 2024.1 for testing backward workflows?
you would have to contact your regional representative or Tech Support for such issues