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Unable to register ATLAS to digpoints

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Hi everyone!

Prior to starting this topic, I watched the tutorial regarding this issue and read the previous topics relevant to this. However, I am still unable to register ATLAS to dig points. (the option is greyed out) 😭 

I have completed digitising and have also attached a screenshot of my digpts.txt file. the file follows the format based on the tutorials. 

When I click on change subject under files, I select a folder which contains the digpts.txt file, an snirf file and the probe.SD file. the 2 other files are in the folder because I watched a tutorial video which mentioned something about this. 

In Matlab, I also have my digpts.txt file open. 

However, this error message appears in Matlab:

chmod: 2/ForwardModel/tMCimg/bin/Darwin//tMCimg: No such file or directory
MC application path = /Users/ryanlim/Downloads/AtlasViewer-2.44.0 2/ForwardModel/tMCimg/bin/Darwin/
MC application binary = tMCimg

Refpts: Found eeg system sphere file /Users/ryanlim/Downloads/AtlasViewer-2.44.0 2/Refpts/10-5-System_Mastoids_EGI129.csd
Index in position 2 exceeds array bounds.

Error in convertProbe2SD (line 19)
[unique_probe_ml, ~, ~] = unique(,[1,2]),'rows', 'stable');

Error in initProbe>save_loc (line 249)
SD = convertProbe2SD(probe);

Error in checkRegistrationData (line 11);

Error in getProbe (line 102)
probe = checkRegistrationData(dirname, probe, headsurf, refpts);

Error in AtlasViewerGUI>LoadSubj (line 303)
probe = getProbe(probe, dirnameSubj, digpts, headsurf, refpts, dataTree);

Error in AtlasViewerGUI>AtlasViewerGUI_OpeningFcn (line 140)
LoadSubj(hObject, eventdata, handles, varargin);

Error in gui_mainfcn (line 220)
feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure), varargin{:});

Error in AtlasViewerGUI (line 19)
gui_mainfcn(gui_State, varargin{:});

Error in AtlasViewerGUI>menuItemChangeSubjDir_Callback (line 823)
AtlasViewerGUI(filesepStandard(dirnameSubj), dirnameAtlas, 'userargs');

Error in gui_mainfcn (line 95)

Error in AtlasViewerGUI (line 19)
gui_mainfcn(gui_State, varargin{:});

Error in>@(hObject,eventdata)AtlasViewerGUI('menuItemChangeSubjDir_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating DestroyedObject Callback.

I am not sure if I am missing something out! because the option to register ATLAS as digpoints is still greyed out:( 
I would greatly appreciate the help from anyone who has overcome this issue!

Thank you! 😌 

(I am using AtlasViewer-2.44.0 and MatlabR2024a) !