Troubleshooting

Problem Possible cause Solution

Surface fails to merge with error “Merge outside available range”.

The imported surface is too far from the as-built surface.

Check that the source surface is correctly located.

The imported surface had the wrong coordinate system applied. Check that the imported surface has the correct coordinate system applied.

Not all surfaces or images are listed in the Surface Items list.

The Surface Items list may have a filter applied.

In the Surface Items list, click (Filter), and make sure All is selected.

The Imagery colouring option is not selected. Images are only shown in the Surface Items list when the Imagery colouring option is selected.

In the Colouring tool, make sure the Imagery option is selected.