Hi there I installed Kubuntu 15.04 and also added the Kubuntu Team Beta 5.3 PPA. I notice that whenever I try to alter the size of Konsole it freezes. Also a click on the "x" won't kill it. Only after trying to start a second Konsole instance then I get a message that it's unresponsive and it gets killed. Reproducible: Always
After removing the konsole config files from ~/.config/ all seems to work again. Still, I wonder what caused the freeze.
Please re-open if you can reproduce this issue with Konsole 18.08.x.