Turbine drainage is deleted.

This is a translation from Japanese, so please forgive me for any minor mistakes.
日本語からの翻訳なので、細かいミスは許してください。

There were other people who verified the save data on the forum, but it didn't seem to happen there.
I'm sure it happens in my environment, so I've taken a video of it and attached it.
自分以外にフォーラムでセーブデータを検証された方がいましたが、そちらでは発生しなかったようです。
自分の環境では確実に発生するので、動画を撮影して添付します。

steam deleted.mp4

Once the vent on the right side is closed, the steam chamber sensor on the left side from then on somehow does not become 20kg, resulting in the loss of steam.
一度右側の排出口が閉じると、それ以降左側の蒸気室センサーが何故か20kgにならず、結果的に蒸気が消失します。

I may be experiencing the same issue. Upon loading a save, the chamber beneath my turbines has 24.4kg/tile steam. Within a minute, the steam volume drops below 16kg and continues falling. The chamber is sealed, so it appears that steam mass is being deleted. Screen shots and save file are attached.

Space Adventure - Broken.sav