An update to 4.3 is available on the beta branch. This fixes it so the editor is not DPI-aware and will be scaled correctly if scaling on Windows is used. This build is also built with a fresh install of Windows 10 and Ubuntu (but it shouldn't make any difference).
This is a full build for Windows and Linux, with C++ libraries included. Game Launcher is also updated on its beta branch.
If there are no problems with this, it will go onto the default branch in a couple days.