The new release of ContextCapture Update now includes ContextInsights. As part of the process users may be required to download detectors. We have noted that the download link in the Production definition dialogue box is currently not correct. This will be rectified at the earliest opportunity.
In the mean time we would direct you to the following webpage for the ContextInsights detectors downloads:
https://communities.bentley.com/products/3d_imaging_and_point_cloud_software/w/wiki/54656/context-insights-detectors-download-page