If the player is scrolling with his mousewheel to pick a different slot in the inventory bar, only every second slot will be selected. This is not caused by a special Mouse or Setting. Wayland/XWayland changed the way how the Display Server communicates with the input devices.
MC-92401
Minecraft on XWayland: Scrolling in inventory bar selects only every second slot
Resolved
Awaiting Response
0
(Unassigned)
Unconfirmed
Minecraft 1.8.8, Minecraft 15w44b, Minecraft 15w45a, Minecraft 1.9.1, Minecraft 1.9.2
Retrieved
Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w42a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time. If you are the owner/reporter of this ticket, you can modify the affected version(s) yourself.