This is a bug in pyqt5 5.10.1. https://github.com/Ultimaker/Cura/issues/3438#issuecomment-383494598
Here's a patch: https://git.archlinux.org/svntogit/packages.git/tree/trunk/pyqt5-cura-crash.patch?h=packages/pyqt5
- Bug#897000: cura: crash on startup Karl Kashofer
- Bug#897000: [3dprinter-general] Bug#897000: cura: crash... Gregor Riepl
- Bug#897000: [3dprinter-general] Bug#897000: cura: c... Karl Kashofer
- Bug#897000: [3dprinter-general] Bug#897000: cura: crash... Matt Miller
- Bug#897000: cura: crash on startup Gregor Riepl
