@RockvilleBear posted:Thank you for the information.
I spent many hours bashing my head against a brick wall trying to determine why my WTIU would not operate my AIUs. In my view, MTH should have beta tested the WTIU on a large layout, e.g. YouTubers' layouts, and made the cables available before offering the unit for sale. Furthermore, rather than stating the cables will be available at a "later" date, MTH should announce a specific or at least approximate date. Also, MTH should post information about the promised cables and the WTIU/AIU software problem on its web site and in the daily e-mail product announcement e-mails. I think that MTH needs to improve its customer service.
I think that both MTH and Lionel need to consider shipping a product after it's actually finished.