"Inlay UNN - Die interface model could not be produced" when try to create margin line on die interface step

"Inlay UNN - Die interface model could not be produced" when try to create margin line on die interface step

When try to create margin line for crowns or inlays on die interface step EM: "Inlay # - Die interface model could not be produced. Unable to define the margin line using the die interface settings. Please try to change the parameters of die interface".

Root cause: the scan may contain holes. If the margin line is crossing a hole, the error can pop up.

Possible solutions:

1. Redraw the margin line in such way, that it won't cross the hole.
2. Close the hole at preparation step using sculpt toolkit.