Hi Alex,
I was not able to reproduce this with the MNE sample data. Please find the
data files (stc and src) from my study that caused the problem here (
https://www.dropbox.com/sh/qddmd9vr8rg7hw8/00drNDyuqW). Thanks in advance.
Kam
Hey Kam,
It looks like your `stc` somehow has (many) vertices that are not in the
source space. It also looks like that STC has 10242 vertices per
hemisphere, consistent with an ico-5 source space, while the `src` you sent
has 4098 vertices per hemisphere, consistent with an oct-6 source space.
Did you perhaps morph the data to fsaverage ico-5?
I'm opening a PR for mne-python to catch this and throw a better error.
Eric