Hey thanks for raising this.

I've got a patch coming soon in the next day or two where I've made a minor change to that part of the code but atleast from what I can see it does the right thing. The power factor text updates when a load connects or disconnects, so maybe something disconnected last minute. Also that mission in particular requires both conditions to be true (the poles and the PF) so you would have failed if you didn't build the extra poles too (the one with the red text is the failed one). I'll look further into it to make sure it's working as expected.