Alright, Steam, keyboard & mouse. Really strange one, this is. I have done all the gateway chambers on every planet except Glacio and Atrox, and so far I've only encountered this on Galcio. I flew to Glacio, took all my stuff I needed off the rocket, and completed 3 gateways when I noticed one of the ones I had already gone to was "dim" or un-powered again. I carried on and powered a fourth one, only for a second gateway to go dim. So I went back to one of the un-powered ones and this is what was there. The same thing happened with the second one that went un-powered. For some reason the game decided to spawn in a new gateway on top of the one I already powered, and then the one beneath it became completely irrelevant, so I needed to power the new spawned in one in order for it to show back up in the odd stone as "bright."