Created attachment 119964 [details]
systemsettingscrashlog

SUMMARY

After updating my KDE Neon Git Unstable installation today, if i try to open "Configure desktop" the entire plasma shell crashes and goes black, with Konqi saying that it was a "Floating point exception"

At the same time, most of the system settings modules crash, however they do not take down the whole Plasma shell. I think the same issue is causing both problems.

I could not get a log for the plasma shell crash.

STEPS TO REPRODUCE
1. Click "Configure desktop" or open systemsettings and open a module such as workspace theme.

2. Observe shell crash for configure desktop (and it never opens), or observe systemsettings crashing from opening the workspace theme module (the modules never open before the crash). Both give floating point exception errors in Dr Konqi, however the configure desktop crash method does not offer any logs.

OBSERVED RESULT

Shell crashes when clicking "configure desktop", the settings menu never opens, and plasma shell doesn't always recover from the crash and requires restarting it manually.

AND

Systemsettings application crashes from clicking on some of it's modules such as Look and feel, Workspace theme, Colors, etc.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon Git Unstable with Linux 5.0.13-xanmod8

KDE Plasma Version: 5.15.80
KDE Frameworks Version: 5.58.0
Qt Version: 5.12.0