Seems like it's not a bug, it's a feature πΊπΈ
"Basically, Texas has its own grid to avoid dealing with β you guessed it β the feds. But grid independence has been violated a few times over the years β not even counting Mexico's help during last week's blackouts."
https://www.texastribune.org/2011/02/08/texplainer-why-does-texas-have-its-own-power-grid/