Zero padding in Refinement

When running homogenous refinement on the output particles and volume from an ab-initio reconstruction job, the following error pops up. I don’t understand the reason.

Traceback (most recent call last):
  File "cryosparc_worker/cryosparc_compute/", line 84, in
  File "cryosparc_worker/cryosparc_compute/jobs/refine/", line 188, in
AssertionError: Particle zeropadding size (E-step) is not even

I would appreciate it if you can help me.

@shekshaa What is the box size (in pixels) of the input particles?