the station is unloading the liquid, however there stays 0.1 in each tank so the train condition untill inventory empty is never hit.
the problem:
1. Read Train content reports 0, even though it should report 0.3. <--- bug here
2. combinater reports anything >0 as false
3. second combinator reads content of each liquid and reports 1 for each missing liquid.
4. pumps go on if liquid condition = 2 (2 + 3)
Solution: Read train content should report the float 0.3 in this example
Blueprint (fill a train wagon with lubriquant):
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