Ethernet sharing crashes Plasma desktop

I have been trying to search Bugzilla for any report, but the search seems to be hanging, so I am documenting this here just in case Bugzilla is undergoing maintenance.

After updating to Tumbleweed 20200209, I could not activate sharing over Ethernet to my Raspberry Pi as it seems to first crash the network manager app, before crashing the entire Plasma desktop. It’s bad enough that I have to do the REISUB combo every single time to reboot the computer as it seems to be ignoring sudo reboot even after successfully entering the reboot commands from tty. I have tried swapping out wires, changing to Wayland, logging in and out, and restarting, yet the problem still persists. It is probably not a hardware issue as I was able to create a shared Ethernet connection in an Ubuntu 18.04 and 19.10 live desktop environment.

The only time it seems to work is when I delete the Shared Ethernet configuration in the network manager and creating a new shared Ethernet connection. But after disconnecting and reconnecting the crash reappears once more.

Any bugs so far reported on this issue? What tests should I try next?

Without knowing from which version you updated it is not of much use. But anyway - the first thing to check today in case of any networking issues is /etc/nsswitch.conf: