Mismatching between the number of vertices and the shape of data

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Hello everyone;

  • MNE version: 1.6.1
  • operating system: Windows 10

I am working on a project where I need to compute the coherence between EEG channels and visualize the results in source space. I follow this tutorial Compute coherence in source space using a MNE inverse solution.
However, I encountered a ValueError when trying to create a SourceEstimate object for plotting. The error is:

ValueError: Number of vertices (8196) and stc.data.shape[0] (67174416) must match

I suspect the issue is related to a mismatch in the shape of the coherence data and the expected number of vertices, but Iā€™m not sure how to resolve it.
Could anyone provide insights into what might be causing this error and how to fix it?
Thank you in advance!