Dear Developers,

Running into a new issue; inputs to 3dttest++ are .nii requested output is AFNI .BRIK & .HEAD. Clustsim outputs .nii from randomization can't insert into AFNI .BRIK and .HEAD output dataset.

• 3dttest++ ===== starting 3dClustSim A: elapsed = 1106.0 s
  ++ 3dClustSim: AFNI version=AFNI_25.2.10 (Sep 9 2025) [64-bit]
  ++ Authored by: RW Cox and BD Ward
  ** ERROR: -inset './out_PE.0001.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0002.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0003.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0004.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0005.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0006.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0008.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0010.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0011.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0012.nii': failure to open dataset
  ** ERROR: -inset './out_PE.0015.nii': failure to open dataset