How is this even technically possible?
Did all the miners stop mining at the same time?
Is there a bug in the code?
<3
JQ
There's data in a particular block (from what I've read) that caused this problem. It's probably a minor fix. It just takes time to understand it, create a fix, and then test it. It's a small hiccup, and once fixed, you probably won't see this happen ever again.
The extra time they are taking to be careful they fix it right and the fix is 100% good, I like. I don't want them to rush writing a cheap fix. Leave them some time.
...and usually someone will write a blog post explaining what happened and how it was fixed after this is all over.