Hello, I'd like (not really) to show another of my daily errors solidworks propose me to test my patience:

- In an assembly I modify one part in function of another (a belt that has to pass trough a wall, so that I have to create a hole)

- In the function I select "propagate feature to parts"

- The function is correctly added to the part

- After that I need to apply some modification to that part that has been changed (let's say just for example I need to apply a fillet to the hole has been created to let the belt pass) 

- Solidworks magically :
                                       1- delete the further modification (example: the fillet ) 

                                      2- don't process the feature that has been propagated to the assembly (the hole) no matter if I rebuilt the visualization or close and open the file.

Marco