zSolaris

https://www.nytimes.com/live/2023/06/22/us/titanic-missing-submarine/dfca265c-b461-5a4b-a300-f5e7efcd6eeb?smid=url-share

They did.

The underwater banging noises that were picked up by the authorities earlier this week do not appear to have had any relation to the site of the submersible’s wreckage. “There doesn’t appear to be any connection between the noises and the location on the sea floor” where the debris was found, Mauger said. Previously, the Coast Guard had said that they repositioned their search efforts around where those noises were detected.

ACG’s review: https://www.youtube.com/watch?v=PlkCHD8LPeo

Haven’t watched it for the risk of accidentally spoiling anything but he seemed super hyped (at least per his twitter posts).