ECW Image Distortion Hotfix
Autodesk AutoCAD 2015-2017 Geolocation Online Map Hotfix
"Are ECW images within your drawing(s) not appearing correctly? If not, here's the fix...."
Autodesk released a Hotfix to address an issue where raster images in ECW format do not display correctly after being attached to a drawing (see image above for an example of the distortion/noise).Once the Hotfix is applied, ECW imagery will display correctly, resolving the undesired image quality problem.
This Hotfix applies to AutoCAD 2015 through 2017 including all AutoCAD-based vertical product such as Civil 3D, Plant 3D, MEP, etc.
For additional information and to download the Hotfix - CLICK HERE.