import multiprocessing as mp

[WhiteSymmetry]

Windows fails when you do not type this command. When I write it this way, it works without errors.

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[mrbuche]

@WhiteSymmetry

Thanks for bringing this up. multiprocessing is disabled for Windows/MacOS currently since it doesn't always work for everyone. The code in the repo now should avoid the issue you experienced (the use of multiprocessing as mp is now within an OS check).