i was installing buildings on one of my planets, from the arti menu, it was a refining lab, the blue loading bar showed up, didn't go away, so i re clicked the building to sort of soft refresh my input(did this about 10 clicks actually), still no response, hit F5, went back to the planet because i wasn't done, and two refineries were on the planet.
of course one was doing nothing, but its still something that shouldn't happen.

even more so, the 50%- off building is all screwed up, you end up paying like 50% of 50%

No, it still takes away an amount equal to a flat 50% of the original cost, but after building one it displays 25% of the original cost. Same happens with Devastated Landscape, after building the first one it actually shows four times the original cost, but it only uses two times the resources to build.

In my experience it actually uses the 4 times resources. As for the glitch with the refining labs, well correct me if I'm wrong but they don't produce anything when you have more than one right? And I doubt your missing that lab.

thats not the point, im just alerting dan to the possibility of planets being over built still
and no, one lab is hardly worthy of a complaint, im not looking for a refund lol