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UE4 editor does not detect actual position of mouse pointer on Mac

When using the editor on MacOS, under some seemingly random circumstances, if the user repositions, maximizes, minimizes, or moves the editor window between workspaces, the mouse pointer will no longer click or highlight its actual location within the editor.

Please see the attached screenshot for an example where the mouse is not hovering in the save button, but the save button is still highlighted. If I were to try and click save, the editor would not see the mouse pointer location as that position and instead would be somewhere below it.


I've owned multiple Macs and used Unreal 4.13 through 4.18, and this issue persists between systems and versions.

Current system is MacOS High Sierra, 2017 MacBook Pro

Product Version: UE 4.18
ue4macmousebug.png (156.0 kB)
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asked Mar 13 '18 at 07:31 PM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Mar 13 '18 at 09:48 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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