Two of my SPACE nodes died yesterday upon receiving block # 1405731 at ~09/01/18 03:27 GMT.

Seeing my network connections now down from ~25 to ~6 I suspect this happened to others as well.
Spacecoin explorer stopped working around the same time.

That block # 1405731 seems now accepted in the chain and I wonder what might have caused the nodes to stop/crash. If this is reproducable it could be nicely abused to DoS the SPACE network.