MC-78497Bug in keybinding
We all know that if you hold your mouse on an item in a GUI and press a number on your keyboard (for example 1), it'll go to that slot in your hotbar... You can also use thes numbers to quickly navigate through your hotbar when in-game (not in GUI)
For that last option you can change the button you want it to be for that slot in your hotbar to whatever you want in your controls (For example: I prefer my 9 slot in hotbar on button 3, that's the scroll button on your mouse)
But I can't hotkey items to my 9th slot with my scroll button as done in GUI when using the normal numbers (1-9)
Can this (bug) be fixed... it kind of bothers me 
Normal
Created Issue:
Bug in keybinding
We all know that if you hold your mouse on an item in a GUI and press a number on your keyboard (for example 1), it'll go to that slot in your hotbar... You can also use thes numbers to quickly navigate through your hotbar when in-game (not in GUI)
For that last option you can change the button you want it to be for that slot in your hotbar to whatever you want in your controls (For example: I prefer my 9 slot in hotbar on button 3, that's the scroll button on your mouse)
But I can't hotkey items to my 9th slot with my scroll button as done in GUI when using the normal numbers (1-9)
Can this (bug) be fixed... it kind of bothers me
relates to
duplicates
Can you show me your options.txt? I think you may have pick block and slot 9 assigned to the same key, Your issue is sort of confusing... add screenshots, steps to reproduce etc.
Confirmed in 1.8.3. Occurs for all hotbar slots, not just 9.
Confirmed for
This might be related to https://bugs.mojang.com/browse/MC-81042
What is your operating system?
Dupe of MC-577