Situation: my dispenser will dispense the water from its bucket & will return its empty bucket into the dispenser’s inventory, but when it is powered next it tosses the empty bucket instead of retrieving the dispensed water.
I have tested using a sideways facing dispenser w/ a stone button. The dispenser only has the 1 water bucket in its inventory.
problem repeats on every attempt to pull the water back.
The only way I can get it to toss the empty bucket when there is water in the block in front of it is if the water is flowing rather than a source block, but if it was just dispensed it should be a source block so I'm stumped.
Is there anything in the space in front of the dispenser before the water is dispensed?
Are you using any mods?
Single player or on a server?
I tested in 1.16.4 as well, as expected there was no difference.