Hmm, I am not sure. The code was publicated few weeks ago. If there was some malfunction, I am sure that someone will announce that... Probably...
17 hours without a block is not normal, something is up.
Also there was no incentive for someone to spend days trawling over their code, maybe a bounty program may have found this.
Totaly expected, less than 10% of the previous hash rate and difficulty change because of the block time increase.