Impossible to get evenly spaced particles following a path

[Nicohk92]

I have path in the shape of a horizontal wave.

I set a rectangle to follow that path (with layer bending option )from start to end with simple linear key points.

I put that rectangle in a particle layer in order to have multiple iterations of the move, emitted at a constant frequency (evenly spaced).

However that doesn't work. The particles are not evenly spaced.

Please see screenshot here:
https://www.dropbox.com/s/hpo6mtx21c3eg ... 1.jpg?dl=0



Can anyone help?

Thanks in advance

[slowtiger]

If it's not too many duplicates, I just animate that rectangle once, then duplicate that layer as often as I need and shift each copy the same amount of frames in time.