Negative Alan,
the effect started in april 2015 for hex 501DA9 and for hex's 49D287 and 489C08 a couple of days ago.
Forgot to tell: reg seen in list, on map, in alerts and in Log reports.
PC with populate cycles: 49D287, 489C08 is false in the db, 501DA9 is correct in the db.
PC with server db dowloaded a couple of hours ago: 49D287 is false in the db, 489C08 and 501DA9 are correct in the db.
Ingo