Bezier Extrude doesn't work?


I want to copy an item along a path using the Bezier Extrude tool.
I found 2 videos on Youtube demonstrating the tool and I read through the online manual.
But for some unknown reason it doesn’t work. I select my item, LMB click the tool, draw a path, and no matter what options I try, it won’t create more than 2 copies total. It can go down to 1, to 0, back up to 2 but not above? :curious:

Using Modo 801 SP2. I’m very new to the software and have no idea if other settings could affect this.