In this version, I and anyone else using the machine have had an issue in that once you fill it with the needed item to do its job it refuses to accept any more of that amount even when depleted unless a forced block update is applied. For the time being we all use a timer block set to 30s (The time dosen't matter), which forces a constant block update to occur allowing the machine to accept liquids and keep it topped off. I have had this issue on the same version on two different servers.

Should be fixed