Plenty of grins the the fellas involved in the "sinkings". I did see footage from the periscope camera of the keel of the CV

from about 30m below it.
The opex was somewhere in the pacific near Hawaii from what I've been told. Dunno any other details about the "sinkings" though. As to whether the problems with the Collins' are sorted or not, I can;t really comment other than the guys involved are doing their best to get them all sorted as fast as they can. Government bureacracy notwithstanding!