In Visual Studio, make sure you have unchecked the “Just My Code” option in Debugging options:
When you debug a HOOPS Visualize HPS-powered app, please note it is multithreaded. HOOPS Visualize works with different threads, you can access from Visual Studio:
Browse the thread to find the different internal call in HOOPS Visualize:
HOOPS Visualize HPS source code is not provided, so you will only have access to the call stack