I have activated all the power stations in the Lush Caves but I believe I did it out of order. The map does not show any other power stations. It only shows the marker for the big room with all the colored stations meet. One day I activated only one station and then a few weeks later I activated the other three. When I went to that last big room I noticed that the blue tubing was not lit up. I tried to find where it originates from but was unable. Now today I went back hoping that it was just a glitch but now it shows the blue and red lit but the green and yellow are unlit. I have no idea what to do. Not being able to complete the lush caves is holding me back from progressing in other areas of the game. I have played over 160 hours and will not start over after getting so far in the game already.