Ice appears in the sealed space

似乎是因为mod bigger camera zoom out，关闭之后就没有这种情况了，问题已解决

It seems that it is because of the mod bigger camera zoom out. After the shutdown, there is no such situation. The problem has been solved

看起来我下结论太早了，关闭mod之后过了一百周期又出现了此bug......看起来不是mod的问题

It seems that my conclusion is too early. After closing mod, this bug appears again after a hundred cycles It doesn't seem to be a problem with mod............A bug that is not very serious but annoying

I can't read all, but, are you sure this ice don't come from the liquid pipe we can see  just above the ground ?

The temperature in the room seems to be very low. So there must be some liquid that freeze after entering the room.

 

Moving the liquid pipe in the insulated tiles should solved your issue. (if possible)