Issue:
Civil 3D 2021.2 Some images cannot be imported into Civil 3D 2021.2 (example U8tif) when trying to create a Surface. You will notice Pixel type of U8 when viewed on a Image Server.
Causes:
Civil 3D 2021.2 This is a known issue.
Solution:
Do not use update 2021.2 or use another Image Format.
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