Eletric tree locked because of efficient photovoltaics. I have over 20 points I cannot use because this blueprint just is not spawning. No other tree is blocked like this. Either the tree is designed poorly or the change to get the blueprint is bugged. I saved up 5 tablets once and created a save point before opening them. I reloaded so many times opening all tablets and after hours, I gave up because it never spawned when opening. Days later and a few more tablets and I am still blocked on this. I am hitting the quitting the game point because mechanics are blocking progression at this point.
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