tck files in the connectome2tck folder don't open

[mayayab]

Summary

The tck files in the connectome2tck folders don't load in typical viewers (MI-Brain crashes, mrview gives a "bad file format" error: "mrview: [ERROR] unknown format for image "/qsirecon-MRtrix3_act-None/sub-xx/ses-2/dwi/connectome2tck/sub-xx_ses-2_space-T1w_desc-preproc_schaefer400_radius2_meanlength_c2t_exemplars.tck" This is the case for all the .tck files extracted from the zipped folder sub-xxx_ses-2_space-T1w_desc-preproc_exemplarbundles.zip (but the main xxx_streamlines.tck file is correct and opens as expected)

Additional details

• QSIRecon version: qsiprep version 22.1, using the mrTrix_act_None reconstruction json file.

[araikes]

@mayayab,

Using the mrtrix_multishell_msmt_ACT-hsvs recon spec, I cannot replicate this. Mine load just fine in mrview. Can you clarify that you're loading an image first in mrview (like the white matter FOD mif.gz file) and then loading the tck file using the tractography tab?

[mattcieslak]

@mayayab The issue is that you're trying to open the tck file with mrview instead of opening a mif file and loading the tck file with the streamlines tool. Please reopen the issue if that's still giving you trouble