Interesting... Superblock solved now but it is 2 hours and 40 minutes ago..... And there are a lot of SOLO MINING blocks that report abnormalities. Many seem to be resolved 5-10 minutes before broadcasting.....
What's under

Probably the solominer that uses a new address every block solved the superblock and withheld broadcast until they could work on a few more blocks. Looks like it worked itself out now though.