Thanks, Testmonkey. Just briefly looking at another one this morning - TCX983K.
This is live (via my antenna) - no route, doesn't appear in MyFlights, yet it's in the database.
Network is on, but have now turned it off.
Restarted RadarBox in network off state, and the route appears. I assume, therefore, that this is the bug in the database software to which you refer.
I wonder if Airnav are any closer to fixing it, if so? If my memory serves me right, this was highlighted in the previous version and was apparently supposed to have been fixed for v2.0. I have long been dubious about the routes, and hope that this can be addressed soon.
DC