As I have no education in this area I most likely make some kind of obvious mistake, but then there's time for learning.
I'm trying to find a route between ESSA and LGZA and ended up with the following
NOSLI N850 TONSA UL87 RAKIT UM725 SPL UL862 BRD UL995 KRK UA14 ARA
When I verify that route using vroute I get:
ERROR: Unknown airway/waypoint UL87 (or RAKIT is not part of UL87, or UL87 is an airway that does not include TONSA)
To me that error initially seems obvious but when I use the latest enroute charts (EU 03N, EU 03S and EU o6N) in Navigraph to investigate the problem I'm not able to spot what I'm doing wrong. To me it seems that RAKIT is an intersection for both UL87 and UM725, but it isn't!? The same goes for TONSA, in my opinion.
The first reply I got was that one of my colleagues found two RAKIT/ISECs. One in EDDB/fir with position N53 10 73 / E13 54 67 on the UL87 track and one in the URRV/fir where the track UL87 not crossing at all. He wonders if that might be the mystery and so do I. I'm out of knowledge in this area appareantly...
Regards // Rikard Ståhl