A problem similar has been happening since version 3.xx something came about. It also happen in version 1, That is what I found in research. Not sure about before ver 3, But I can tell you for sure it happens in 3.18 and 3.19. Glad you are looking into it. I will look at code later to see if I can make sense of it. But the part that if leader dies and other is elected, voting dies if there is only one. And when you do a reboot, different machines boot at different times so you will always have one machine first, and then it looks like it locks up from there. I believe that is why I have to keep restarting lxd then until they sync up.