This may only be a workaround and not address the actual bug, but I removed ~/.kde/share/config/plasm* while logged in through a console only. This resets all of the plasma settings back to the defaults. I reconfigured everything back to the way I had it and I have not had a crash since (3-4 weeks). It's a big pain but it's better than having plasma-desktop crash almost every time I get a notification or switch windows.
This may only be a workaround and not address the actual bug, but I removed ~/.kde/ share/config/ plasm* while logged in through a console only. This resets all of the plasma settings back to the defaults. I reconfigured everything back to the way I had it and I have not had a crash since (3-4 weeks). It's a big pain but it's better than having plasma-desktop crash almost every time I get a notification or switch windows.