I am using Solid Inspector to help me create a solid for a volume calculation on some landscape. However, I’m down to the last 3 surface borders and 1 internal face edge and I cannot for the life of me see them. The previous one I found was minute. This one/these must be microscopic - I have set the style to Xray and turned off all edges, etc in the hope that it would be easier to see the little red highlight from solid inspector, but it just isn’t visible.
Is there some other way to find this last error/last few errors?
Here is a link to the model: https://www.dropbox.com/s/1bi6vnp8ze1qbvm/VOLUME-WORKINGS.skp?dl=0
Many thanks in advance.