afni.nimh.nih.gov

I'm looking into this issue. You can work around this issue in the meantime with 3dcalc to separate left and right using the index or using angle brackets "<Area_TE_1.1>" as the dataset range selector.

3dcalc -a ~/abin/TT_caez_mpm_22+tlrc.'<Area_TE_1.1>' -expr 'step(a)*step(x)' -prefix TE_1.1_left.nii.gz