Anti Entropy Themo Nullifier won't run

It happened again with a new start. This time the surrounding area is room temperature. Not sure what is going on. It is the one in the cold biome. The upper one. The bottom one is currently flooded.

Top anti-entropy bugged again.sav

I used your second save.

I'm not sure, but it seems that removing the bottom deodorizer (right next to the AETN at the bottom) made it work again.

That or sweep everything, but I think the AETN needs a little space around it to function (the error message seems to be wrong, as it is absolutely not too cold).

At the time I write this, I think I discovered what was happening:

1. The p.dirt/slime/... puts pO2 in the air.
2. The deodorizer detect pO2, so it capture the pO2. (normal behavior)
3. The tile is replaced by vacuum. (idem)
4. The AETN detect that vacuum tile, and consider vacuum to be at -inf °C: the atmosphere around it is at -inf °C.
5. The surrounding air fills that vacuum.
6. The AETN doesn't detect this quick enough (as it waits before updating itself, normal behavior).
7. Repeat at step 1.

So in a sense, the air around the AETN might be "too cold" for it to work.

Thanks that may be it.