If I change under controls any hotbar slot to my mouse 4 button (I use this to get quicker my pickaxe) and do this during sneaking (pressing shift), then the used item slot switches autimatically to the Hotbar Slot which I selected for my mouse 5 Button and not to the right one, I selected in the options.
Linked issues
duplicates 1
Comments 2
Resolving to MC-40227.
Cannot reproduce. Please attach a video/picture so I can reproduce this bug.