This is only about BU, it seems that problem has been solved now.
But what about SegWit? Could it also cause a hard fork, or it will have only minor effect on bitcon?
It would be nice to see all the news in one place
No, SegWit would not cause a hard fork. It is compatible with previous versions, or a soft fork.
But the support for SegWit is lesser than the support for Bitcoin Unlimited now.