The database of waypoints is maintained from the AIP's of all of the ICAO contracting states
When did this change? I can assure you that DCT VLN DCT SWB DCT CTM DCT MID DCT VLN DCT most certainly
used to work in late 2005.
If the system won't accept any route which uses
any published UK navaids, then that only goes to show how limited it really is....
I also tried a route from EGYM to EGHQ on TR1 which
is in the AIP (see page 6-3-5-1). It wouldn't take DCT MAM TR1 LND DCT, so I tried DCT MAM DCT BZN DCT VLN DCT LND DCT which is the same thing, but it wouldn't take that either..... It won't even take BZN as being in the UK, it thinks it's Bozeman USA.....
I assure you that I certainly can file a FPL based on TR1, for example.....
Sorry, but it really is nonsense if it is so limited.