That's how it should be. Then why don't all nodes switch to that chain when they see the blocks?    I have to admit that this is somewhat above my head, to me it doesn't make sense. Note that this also happens with some clients which have the correct, newest version. It happened to my own client as well, says "incorrect proof-of-stake" even though it is the newest version. That's also why I was asking people to look at their debug.log instead of just using the bootstrap blindly.