[canonuk]

Couple of things to try.

Firstly, place your first taxi point directly on the runway point. (see bottom image). If you want things to link up smoothly, place linked points directly over each other.

Secondly, don't have two 'commands' for a single point. For example, in the top pic in the sandy area at the top, there are two STAY points for each TAXI point. The AI doesn't seem to like too many choices.

Hope that's helpful

Joe