Unreal Editor 5.7 UI interaction is broken on Linux for ~3 month already

Summary

As the title says, the UI is broken. Mouse clicks don’t work properly - you have to click 2–3 times to get a response, and if an action requires a double-click, you need to click 5–6 times. Popup menus are rendered somewhere in the center of the editor window and don’t respond to the mouse at all, while tooltips are rendered in the middle of the screen.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

UI/Tools

Steps to Reproduce

Start UE build 5.7 on Linux.
Enjoy broken UI interactions.

Expected Result

To enjoy flawless UI interactions.

Observed Result

Buttons and menus are not responding to clicks as expected.

UE 5.6 works without any issues an same system.

Platform(s)

Linux, Wayland

isn’t 5.7 not released yet? there isn’t even a branch. so i don’t think it’s fair to expect

they are moving to sdl 3 afaik. that could break stuff.

btw i think it’s important that you share your distro and desktop environment too.