The oxygen bar goes blank inside the base. The air is fine, I can take off the helmet and not die, just the bar is blank. Not red, yellow, green or blue, just gone. I have airlock-airlock-workshop-short-greenhouse. This issue started when I added the greenhouse. Save and reload fixes it temporarily (though sometimes it resets o2 to zero). I am using a co2 scrubber for the oxygen source if that's important.
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