Temperature is not behaving correctly in original salt water areas

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huge ice ball in one biome.

Isn't this just the "Glaciers" world trait? Biomes behave differently because of backwalls. If you check coquina backwall, it has higher density than the water tile in front of it so they average their temperatures. The original temperature of the biome is around 30-33 C. Or at least that's what I concluded after watching a freezer build with thermo regulator not dropping any temperature until I removed backwalls.

3 hours ago, sakura_sk said:

Isn't this just the "Glaciers" world trait? Biomes behave differently because of backwalls. If you check coquina backwall, it has higher density than the water tile in front of it so they average their temperatures. The original temperature of the biome is around 30-33 C. Or at least that's what I concluded after watching a freezer build with thermo regulator not dropping any temperature until I removed backwalls.

I understand this but still, shouldn't even some temp shift to background? Or why -10c brine is immediately heated to +25c and above? It takes quite a while for even one full tile of brine to heat 35 degrees. And there was no background on some of these tiles in my experimentation. Maybe I'm missing something but this seems very much of a bug.