Ugg... the same error happened again on a new game. This time it happened during the 2nd LotS event counter-wave though. I hope this gets fixed soon so I can try out some more LotS content. On another note, is there certain criteria that the Spire Maw's need to "load" enemies? At first they usually load them, but on the 2nd planet they never seemed to load any more, even of the same type. And they still had plenty of space. All they did was fire their guns at them...