Pem you cna have your agent call the broker over at prudential to see if they can gather any information.
Again, sdlookup and other 3rd party sites receive the feeds they get through a service. There have been cases where a listing may not show up for whatever reason. It is unfortunate but it does happen. If it was on the market for 19 days then I see nothing fishy about the transaction at all.
Agreed I have seen other transactions, and even posted about them that were bad behavior. Not so sure about this one though. Have your agent send you an MLS feed so that you don’t miss this stuff.