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Interesting… when I leave the folders named MCRv93 or MCRv97 (one at a time, not present together at the same time), then FS tells me I need to install MCRv84! FS7.2.0 seems to only recognise MCRv84, hence why I used for example, sudo ln -s v93 MCRv84. (I kept folders stored and named v93 and v97 in FREESURFER_HOME, so that I can work with them, if I used v93 I rename it MCRv93) When using MCRv84, the segmentation violation only happens for some subjects, independently of if they have been successfully processed with the thalamic subfield script in the past or not.

This is so odd, I am really lost here!

Thanks again for your help.

Yann

On 31 Aug 2022, at 1:24 pm, fsbuild fsbuild@contbay.com wrote:

After you install either R2017b or R2019b using the fs_install_mcr script you should end up with either ./freesurfer/MCRv9.3 or ./freesurfer/MCRv9.7 There are no soft links to create manually and there should be no references to MCRv8.4 in DYLD_LIBRARY_PATH or in the shell environment.

• R.