[INM@RLM]

You are right. Despite the enormous strides taken by Ron and helpers through more than a decade, much fog still surrounds the He 219. Some of that is just the way it is until more discoveries are made, and those may be pure chance.

Some of the fog unfortunately is self-inflicted and those bits we can do something about. For example, my specialism is in production and delivery quantities (and production planning), and the number published by Ron for the total of He 219s delivered was still far too high.

Good spot on the loss of WNr. 190 061. How very ironic (and unlucky for that crew).
I think we can safely conclude that 190 061 was unflyable after suffering the damage on 23-Apr-44. So, Yes, the 16-Jun loss happened with the replacement tail plane in place. Although 190 061 was not a V-Muster example, it was the first series production example to be fitted with a new type of tail plane sub-assembly (Baugruppe 355) - see the 'Bauausführungs-Übersicht He 219' in the He 219 A-7 Ersatzteill-Liste & p.45 in Ron's latest. That might well have accounted for it being transferred to Rechlin first for a period of proof-testing. As Ron confirms it was being flown by a crew from E-Stelle Rechlin when it was lost so the probability was that this was indeed some form of test flight.