Disappearing mass in liquid pump loop

Dear all,

I believe it was reported already but here is a save with moment when mass disappeared. Metal refinery requires 400kg of coolant - it was liquid steel. There was 406 kg of liquid steel in that loop one cycle earlier. However, now there is only 396kg. Where 10kg? Somehow liquid pump suck liquids twice but skipped releasing one pocket of liquid during saving process OR released pocket was not covered by save.

Affected pump:

Location:

There is also save from next cycle WHEN I DID NOT LOADED THE GAME. There is 406kg in the loop!!! So it happens only during loading process.

I hope it helps You somehow.

Best regards,
Sheaker

Cycl 1153, 396kg, load.sav

Cycle 1154, 406kg, no load.sav