“Remove Duplicates” doesn't work after 3DVA

Hello, every Cryo-EM expert

I run 3DVA with symmetry expanded particles and displayed the result with the cluster mode (6 clusters). I selected 5 of clusters to run ‘remove duplicates’ but the particles were greater than that should be. I did change the minimum separation distance to 0 and shift key to ‘none’. If I use all of particles in all clusters to run the job, there would be no problem. I don’t know why this happened. I am using CS4.6.2, BTW. Thank you so much for your kind suggestions in advance!

If you set minimum distance to zero, it defines particles which are 0.1Å dislocated as unique. Set Minimum separation distance to, e.g.; 50% of your particle diameter and see what effect that has.