Comment 3 for bug 1413661

So this is a graphics driver problem. Systemback GUI is written in Qt5, and it is quite modern, but the hardware is quite old.
I cannot access the Qt's lower level things, so I cannot fix this problem.
But try to boot the Live system in safe graphics mode, Qt5 is works with LLVMpipe (this is slow solution, using CPU).
And check an other Qt5 GUI application, this problem is probably persisted.
But anyway then you can run the command twice. :-)