Summary
[Mac] Mouse sensitivity/acceleration regression across Viewport, PIE, and Event Graph panning since UE 5.8
What Type of Bug are you experiencing?
Editor
Steps to Reproduce
Launch UE 5.8 Editor on macOS
- Open any project, open a level in the Level Editor
In the viewport, right-click and drag to look around - note sensitivity/acceleration feel - Go to Edit → Editor Preferences → Level Editor → Viewports → Mouse Sensitivity, lower the value, confirm viewport look/aim and actor drag now feel corrected
- Click Play (PIE) and use mouse look - observe sensitivity is still elevated/accelerated despite the setting change in step 4
- Open any Blueprint, go to the Event Graph, and pan the graph with held right click, observe panning is also elevated/accelerated and unaffected by the Viewports Mouse Sensitivity setting
Expected Result
Mouse sensitivity should not be higher than experience on other platforms like Win64, requiring platform specific Mouse delta modifiers for in-game look aim speeds to feel similar.
Observed Result
Mouse sensitivity has greatly increased between the 5.7 and 5.8 editors on the MacOS platform, where side by side editors can be observed inconsistant.
Affects Versions
5.8
Platform(s)
Mac