Hi ,

I'm running Freesurfer's longitudinal pipeline and several of the participants 
generate the same error for the mri_robust_template step:
cmd: mri_robust_template --mov sub-ECTRO103-V1/mri/norm.mgz 
sub-ECTRO103-V2/mri/norm.mgz /sub-ECTRO103-V3/mri/norm.mgz 
sub-ECTRO103-V4/mri/norm.mgz --lta 
sub-ECTRO103/mri/transforms/sub-ECTRO103-V1_to_sub-ECTRO103.lta 
sub-ECTRO103/mri/transforms/sub-ECTRO103-V2_to_sub-ECTRO103.lta 
sub-ECTRO103/mri/transforms/sub-ECTRO103-V3_to_sub-ECTRO103.lta 
sub-ECTRO103/mri/transforms/sub-ECTRO103-V4_to_sub-ECTRO103.lta --template 
sub-ECTRO103/mri/norm_template.mgz --average 1 --sat 4.685

error: Internal Error for tp 2 -> template
 Rotation should not scale ( 1.44353e-05 )
 Debug Info:
A = [ ...
 0.9994648269692  0.0051381533060 -0.0325665649690
-0.0062826679505  0.9993709272221 -0.0351399801222
 0.0323652536320  0.0353254803840  0.9988599205733  ]

R = [ ...
 0.9994563704934  0.0051381078439 -0.0325662912834
-0.0062826179162  0.9993626623658 -0.0351396895455
 0.0323649840458  0.0353251881385  0.9988516601031  ]

S = [ ...
 1.0000084609181  0.0000000029711 -0.0000000043613
 0.0000000029711  1.0000082701461  0.0000000000049
-0.0000000043613  0.0000000000049  1.0000082701081  ]

Internal Error: Rotation should not scale.



Looking at the data, I don't see what could be the issue. Does anyone have any 
thoughts on this? I have attached the recon-all.log of one participant. I can 
also share the data if you'd like.

FreeSurfer version: freesurfer-linux-centos7_x86_64-dev-20200403-65d465d
Linux tonetti.nmr.mgh.harvard.edu 3.10.0-1062.4.3.el7.x86_64 #1 SMP Wed Nov 13 
23:58:53 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Thanks,
Sophie

Attachment: recon-all.log
Description: recon-all.log

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