We have lately encountered an issue where adding an apron and compiling the project removes large areas of TIN. The issue is 100% repeatable.
No apron in the dev mode:
Tin is fine after compilation:
Added apron in the dev mode:
The apron is visible after compiling but a huge area of TIN is removed:
When this apron is moved further, the same TIN area is still excluded. I can share an XML file. It would be great if you could have a look at this as it seems to be a bug.