Issue with Co-Registration when combining MEG and EEG data into a single file

Hello @ometett, are you still seeing this issue?

Hi @richard , yes I am having the same issue. The issue only occurs on my M1 macbook though. I ran the same script on windows 10 and pyvista and everything works properly.(I am able to display EEG electrodes.)

Sorry to hear you’re still having problems!
@larsoner So I suppose this is a VTK or PyVista issue?

Yes it’s almost certainly a VTK problem. @ometett you could try VTK 9.0.3 that is now on PyPi (and also conda) but so far I’ve seen bugs introduced by it on both Windows and Linux, so I’m not too optimistic about macOS!