Hello James,

the removeduplicates factory uses a tolerance value to check if a curve is identical. I set the default value to the limit, what for MoI is identical in general (threshold 0.005 - someone should disagree, if I'm wrong). If you set it to 0, the factory can't find identical objects and the node gives everything back. The factory works only for curves and not for points, faces .... -please try the attached node file. If you need something for points as well - we have to program it.

Have a nice day
Karsten

p.s.: In my installation your example shows 3 points as result independent from the tolerance? What version of MoI you use 4.0Beta?