I tried making an issue ticket for this but the WFG Trac won't send me a verification email. When I use the Atlas editor on a system with RTL locale, wxWidgets seems to automatically make the layout RTL. This causes multiple issues to arise, including: GUI items disappear after switching between tabs or resizing the window: Mouse input is inverted horizontally in the canvas: Machine info: OS: Ubuntu 12.04 LTS 64bit (Arabic system locale) 0 A.D. rev: 14386-release wxWidgets: libwxgtk2.8-0 2.8.12.1-6ubuntu2