Hi,
Not sure if by design or a bug, but I tried to copy all of the category properties from the Nav Mesh of one project I have to another project. When I paste the copied category, it works, all properties show the copied value. If I close the Editor / Project an reopen it, the Project Settings category (in this case Nav Mesh) it reverts back to what I had before.
The only way to change them is to enter them manually, they seem to be saved in the Ini after that.
Thanks