Yes I have the VPN setting problem as well. If you uncheck it and look at the logs it doe reboot the VM, but I’m not sure if the setting is actually toggled off after the reboot as the debug info is somewhat sparse. And indeed, reopening the settings dialog resets the setting.
I also tried setting it via pinata
pinata set network nat with the same result (I’m guessing the settings dialog is calling pinata with the same arguments.)