Hi,
what waypoint should SENKA be? A enroute or a terminal waypoint?
I have looked into the AIP of Taiwan and there is no waypoint SENKA available any longer. You find SCOOP, METRO, … but no SENKA.
That would also explains why you don’t see this waypoint on Skyvector (which is complete independent to us and which uses their own data) nor in our app.
The waypoint was included in the previous cycle, so it looks like SENKA is obsolete since AIRAC 2308.
Hope that helps
Richard