For all our valued clients we would like to inform you that when Esri released ArcGIS Pro 2.1 and ArcGIS 10.6, Esri upgraded the software compilers used to develop the software. Unfortunately this caused incompatibilities with ECW components previously used.
Esri has announced the ArcGIS (Desktop, Engine) 10.6 ECW Patch. This patch addresses support for the ECW raster format in ArcGIS 10.6 Desktop and Engine. It deals specifically with the issue of ECW display in ArcGIS. See https://support.esri.com/en/download/7583
ArcGIS Pro 2.1.2 Patch supports ECW files and is available from https://my.esri.com or via an automatic update in ArcGIS Pro
Hexagon, the licensee and providers of the ECW support in the Esri software, are to update these components. However, at the time of the ArcGIS Pro 2.1 and ArcGIS 10.6 software release these components were not available.
It is Esri’s intention that once these new ECW libraries become available from Hexagon Esri will test and provide patches to the Esri software.
Until this time Esri Australia recommends that if you use ECW imagery that you remain at ArcGIS Pro 2.0 and ArcGIS 10.5.1. We will update this blog once the patch is available.