Can't fill a half-full crucible with bucket.

[VadersFist0501]

Attempting to fill a half-filled crucible with a bucket drops the bucket into to crucible. Shift-right-clicking dumps the water on top of the crucible. Contrast this to TC5, where a bucket could be used to fill a half-full crucible. This has been a prevalent issue for numerous betas and I am surprised it has not been brought up. I have lost numerous buckets of water due to this unintended behavior.

[SanMan911]

You need to either empty the crucible with sneak-right click on one of the sides with an empty hand (in which case the entire content evaporates into atmosphere), or have an everfull urn nearby to keep refilling it as soon as you use some water from it. BEWARE though, sneak-right clicking will show you simple, transparent water bubbles floating into air ONLY IF the water in the crucible is plain, 'pure' water. Any mix of any essentia, and it will get lost into air as flux. Personally, I believe it is fine to have this mechanic because not only does it makes sense (you can't add a bucket of water in a vessel which has place for only half; and minecraft doesn't allow half filled buckets), but it also presents a potential need to use the everfull urn :))

[VadersFist0501]

Sometimes there is a smidgen of residual essentia in the crucible that I am not comfortable blasting into the environment. This mechanic has been precedented in previous versions of the game, and I am not sure what you mean about adding a full bucket to half-a-crucible. Minecraft is minecraft, just because real physics exist in real life doesn't mean Minecraft needs to follow them when it impedes convenience. (Recall dumping a full bucket of water onto a source block, which empties the bucket; the player can also throw 3 million blocks of cobblestone into a single-block puddle of lava; real-world physics do not apply, and they do not have to.)

[Dayyer1]

Make an Everfull Urn.

[VadersFist0501]

Doesn't mean that this does not warrant a fix.