Dear Jorge,

Thank you for your prompt response. Any kind of movement artifacts have already been regressed out.
Yes I have tried using other dimensionalities such as 10,15 or 20. When I use dimensionality 15 I get the following error:

Reading data file /Users/tikoos/Desktop/test_2yr/GrpICA/masked_input/input_29_masked_s2.0 ... done
Removing mean image ... done
Reducing data matrix to a 179 dimensional subspace

Excluding voxels with constant value ... done
Normalising by voxel-wise variance ... done
Data size : 179 x 2145
Starting PCA ... done
Start whitening using 15 dimensions ...

After this the masked ICA stops and no resting state components are generated. The index.html file doesn't output anything. Moreover the eigenvalues_percent file has nan values.

Looking forward to your reply.
Thanks.