I think that if we could narrow down what widget was causing the bug, that'd be great. Maybe you could take a look at your plasma-appletsrc file, make a list of the plasmoids you were using, and then move the file to a different location and start adding the applets from the list until it crashes?
I think the network manager stuff is a red herring. I found this bug upstream though: https:/ /bugs.kde. org/show_ bug.cgi? id=186200
I think that if we could narrow down what widget was causing the bug, that'd be great. Maybe you could take a look at your plasma-appletsrc file, make a list of the plasmoids you were using, and then move the file to a different location and start adding the applets from the list until it crashes?