Hi @balandongiv ,
For plot_connectivity_circle it is important that the list of node names passed corresponds to the order of the nodes in the connectivity matrix. As long as this is provided correctly, you may change the node angles as you wish.
Your code provides the correct results since the connectivity matrix conmat has the same order as label_names or epochs.ch_names. You can change node_order depending on how you want it arranged, try node_order = lh_labels + rh_labels[::-1].
Cheers !