❗ Checklist

• I am using the official english version of Slimefun and did not modify the jar.
• I am using an up to date "DEV" (not "RC") version of Slimefun.
• I am aware that issues related to Slimefun addons need to be reported on their bug trackers and not here.
• I searched for similar open issues and could not find an existing bug report on this.

📍 Description

When drinking a juice and in the last instance of drinking it switching to another hotbar slot with a juice, bot get consumed and the player recieves a glass bottle.

📑 Reproduction Steps

1. Place 2 juices in your inventory
2. Start drinking one of them
3. The last minute before the player is finishing drinking it, switch to the hotbar slot with the other juice

💡 Expected Behavior

The expected behaviour is that only one of the juices would be consumed, and the player doesnt get a glass bottle from it.

📷 Screenshots / Videos

https://www.youtube.com/watch?v=GE1DBlG2I84

📜 Server Log

No response

📂 /error-reports/ folder

No response

💻 Server Software

Purpur

🎮 Minecraft Version

1.17.x

⭐ Slimefun version

https://i.imgur.com/Hgp4T9g.png
https://i.imgur.com/AuIoUYW.png

🧭 Other plugins

No response

Yep, can confirm this. But the timing is quite hard for me to get it right lol.
https://youtu.be/sbAQN17qy68

Did testing today, this seems to be the case.
I wanted to verify that not only juices could dissapear, but practially any item in your new slot.
https://youtu.be/suUhWw4eTaQ

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Looking at the code, it seems that this is caused by a timing issue due to Slimefun.runSync(), in which, when well timed, the code can enter a race in this form:

• Juice handler verifies interaction, applies effect and goes to remove bottle
• The function then calls runSync() to schedule the removal of the item in hand.
• While the action is still being scheduled, the player switches exactly at that tick to another spot in the hotbar.
• Minecraft does his thing with bottles, and replaces the old slot with the juice with an empty bottle.
• runSync() activates, and erases item in hand.

This would explain why the timing would need to be very precise.
This is all pure hypothesis though, I will do actual testing tomorrow to see if this is the case.