1 of our nodes got split @ 1450511
good chain:
SetBestChain: new best=ed6d2625348bf68a63fb394261cd289a6b70a79862956c7d6b1506baf90de8ae height=1450500 money supply=7958426 trust=66007710539342 date=08/22/17 15:19:21
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as you can see times of block 1450512, "bad chain" node received block 1450512 few seconds later for no known reason but i see (our) peers getting banned and our peers get isolated from eachother.
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I verify the same: my wallet discovers a block, a few seconds later the only peer I have connected (104.whatever...) sends another block for the same height/position in the chain. My wallet doesn't like it ("too little proof-of-work") and immediately bans the peer, leaving itself isolated.
They should "negotiate" the best chain from then on instead of "turning backs on each other"...