Download Scroll Reverser (or an equivalent) and ensure that it is configured as in the attached screenshot. This will fix the reverse scrolling in all apps, not just Minecraft.
Holding shift while scrolling through the hotbar reverses the scroll direction- i don't know what more i can put here the title is self explanatory
This is probably caused by a bug in the fix of MC-121772
Steps to reproduce
Scroll left or rightwards on the scroll wheel while on macOS
Hold shift
Continue Scrolling in the given direction
Observe the scroll direction being flipped
Expected results
The scroll direction staying the same regardless of shift
Observed results
The scroll direction reverses
- is caused by
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MC-267014 Side scrolling now cycles through your hotbar with no way to unbind it
- Reopened
- is duplicated by
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- Resolved
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- Resolved
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- Resolved
- relates to
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- Open