Yes, now, everything works. Thanks a lot for Your help.
Best Regards, Pawel
email@example.com 07/31/20 10:13 PM >>>
Hi again Paweł,
I realized that `substutited` *returns* a new builder, and does not change it in-place. The docs of `magnetic_gauge` were misleading there.
You can simply replace ``` l_lead = l_lead.substituted(peierls='peierls_llead') ... r_lead = r_lead.substituted(peierls='peierls_llead') ```
in your code, and should work.