In this model the seed points created do not touch the ground, they are above or below the surface of the model, they are usually groups of three points only aligned at several places of the model away from each other.
Next, there are the seed points created with the model visible or not.
I have deleted the job several times and imported from scratch the .3mx model to the editor, I have tried to reduce the analysis of the model from 0.9m to 4.00 m., but the same thing happens.
An other couple of images below again to show the problem.
The version ot the editor is shown below.
Then most easy would be in this case export spare points and import them directly as Terrain. Unfortunately this requires at least OpenSite or OpenRoads as Contextcapture Editor still doesn't have Terrain tools. Three features are missing from Contextcapture Editor to be useful in real-life workflows - need Survey module, Terrain and Materials. Now it is not possible to create some needed output formats requiring additional softwae which is not reasonable and if nothing changes Contextcapture will be less competitive in the future.
Finaly after the upgrade to Update 16, the Context Capture Editor has resolved the problem. The same 3sm model inported to the newest version makes the extraction ok!Thank you Oto for your advice.