Description of the Bug
The liquid fueled steam boiler shows weird buffer.
To Reproduce

Make the biggest low pressure steam boiler (may occur with others)
right click water buckets into the tank and watch the buffer be weird.
Expected behavior
the buffer to be corrrect

Screenshots & Video
https://imgur.com/a/jhbRYyh

Additional context
The one probe seems to show the correct buffer. https://imgur.com/a/bX965FA

Duplicate of #1567