[MC-141494] Opening the trading GUI while holding items causes one to consume, charge or use it

The bug

Having items in your main hand or offhand will consume, charge or use that item when opening the trading GUI with a villager.

How to reproduce

Summon a villager

/summon villager ~ ~1 ~ {NoAI:1,Offers:{Recipes:[{buy:{id:air,Count:0},sell:{id:air,Count:0}}]}}

Run /effect give @s minecraft:hunger 5 255 (Only needed for food items)
Pick an item from "Affected Items"
Right click the summoned villager
Wait (If the item is a food or potion)
→ ❌ You will consume, charge or use the item

Affected Items

Food and potions (Causes you to consume the item)
Fishing rod in main hand or offhand (Causes you to use the fishing rod)
Trident in offhand (Causes you to charge the trident)
Bow in offhand (Causes you to charge the bow)

See

[media]

if you have trouble reproducing.

Linked issues

is duplicated by 24

MC-149004 Accessing Villager trade screen with a click-to-use item in hand uses it Resolved

MC-149196 right clicking a villager with food in hand makes you consume it in the menu Resolved

MC-149711 While trading with farmers you eat food in your hand Resolved

MC-150366 error when trading hungry Resolved

MC-150556 Starting to eat when going into trading UI Resolved

19 more links

relates to 2

MC-166959 Can't trade with villager after clicking on them while holding a written book. Resolved

MC-849 Eating a food item / drinking potion / curing zombie / feeding animal has a chance of also consuming a second food item / potion without any animation Resolved

Attachments

Minecraft 1.14 2019-04-26 01-12-38.mp4

Comments 27

Henry Fleminger Thomson 2018-12-26T17:53:46Z

Or does this only happen to farmers? Or is it because the farmer now wears a diamond...?

tryashtar 2018-12-28T04:43:30Z

I can't reproduce, but did the item seemingly get consumed instantly? If so it's probably MC-849

Henry Fleminger Thomson 2018-12-28T16:02:49Z

No, it could be cancelled and it had an animation, sounds et cetera.

wobst.michael 2019-03-28T19:48:44Z

Please check if that's still an issue in the latest 1.14 development snapshot.

Stef Pletinck 2019-04-27T08:29:05Z

This is still an issue in 1.14 release.

I run Arch Linux, Oracle Java 8.

17 more comments

DrownedZombie 2019-05-21T11:11:39Z

Issue reopened as there is extra information was added which came fromy bug report.

Elemend 2019-05-22T16:31:27Z

Happens in 1.14.2 - Pre-Release 3

Alex Smith 2019-05-23T00:46:46Z

This also affects the scoreboard minecraft.used:minecraft.carrot_on_a_stick. If you are holding one when right clicking a villager the number goes up.

DrownedZombie 2019-05-25T07:21:36Z

Shields are also affected by this issue.

bdm68 2019-06-03T07:30:29Z

Affects 1.14.2. (Pro tip ... do not have a Power V bow active in either hand when trading with villagers.)

Axel Dubois 2019-09-19T15:42:12Z

It also happens in 1.14.4, I don't want to kill my villagers, this bug is very annoying

Alex Smith 2019-12-15T01:32:08Z

Crazy new info on this! If you right click a villager with a signed written book, it opens the book instead. After doing so, a few strange things happen! One is that you can't open the villagers trading at all. The other is that hot keying anything into the offhand slot turns invisible. Weirdest of all is that if you hot key something into the offhand slot then go into your inventory and place a different item into the offhand slot, that item you hot keyed will be completely deleted!

This effect goes away either by saving and quitting, waiting for a bit.

blablubbabc 2019-12-27T23:59:08Z

Can confirm the weird behavior when interacting with a villager while holding a signed book in hand. MC 1.15.1. Does not affect villagers without profession / trades.

pine1needle 2020-02-01T00:56:29Z

Alex Smith, your comment sounds like MC-166959, but your comment lists additional details. I’ve left a comment on that ticket linking to your comment.

Stephen Podgorski 2020-02-16T21:56:33Z

Can confirm this bug still exists in 20w07a

VideoklipBG 2020-02-27T14:40:26Z

Can confirm for 20w09a

YourCoal 2020-03-05T20:31:44Z

I just recorded a little video demonstrating what happens.

https://www.youtube.com/watch?v=o-grR3yJcSo

I couldn't get it to replicate as perfect as I wanted, but basically it shows a freshly spawned entity (eventually) has the bug where opening its trading GUI will consume an item, such as food or equip armor. However, saving & exiting to the main menu and re-joining the world fixes it. This also happens on Multiplayer, however the difference is the server needs to be saved, stopped, and restarted and the same effect will occur.

While this video was recorded on 1.15.2, this problem still persists in 20w10a.

Pelle Reinke 2020-03-28T18:33:56Z

Can confirm for 20w13b

CalXee 2020-04-08T21:39:21Z

I made another bug report that is related to this one. MC-177872

CalXee 2020-04-08T21:49:36Z

@Your Coal
I tried to reproduce it in the steps you did in your video, and I found that if you click on a villager constantly until it gets a profession, then the item gets consumed when opening the GUI. However when doing so after the villager has gotten the profession, this issue does not persist. Very strange!

Michael Reynolds 2020-05-01T22:56:29Z

This is in effect in 20w18a

user-1c543 2020-05-03T20:17:26Z

This is a major problem, especially when the held item is a well-enchanted bow 😞

The issue does not always occur for me, but is quite common

j_p_smith 2020-06-03T07:12:49Z

Interestingly, this issue does not affect wandering traders.

coschevi 2020-06-09T15:26:28Z

Is this still happening in 1.16-pre2? I tested against 20w22a and replicated this, but I cannot repro it in the pres, so I think it may have been fixed incidentally.

TheGabro 2020-06-10T12:06:04Z

Cannot reproduce in 1.16 pre-2

Conem 2020-06-10T12:18:00Z

Unable to reproduce in 1.16-pre2 either.

Radon8472 2021-01-20T22:34:12Z

Realy mad bug.
I could reproduce thus problem with a bow in version 1.15.2.

The bow was charging while i was trading, and after closing the trade, the bow fired and killed my villager (with mending, feather falling III and infinity trades 😞 )