The attempt for Segwit2 activation yesterday finally failed.Its mainly due to the lack of base block larger than 1 MB size.But due to so called off by error,segwit2x blocks started rejecting smaller blocks at block 494,783 instead of 494,784 where hard fork was expected to occur.Even another btc bug1 also prevented miners from mining bigger block.That's the reason for falure of another attempt.