Double-Click on a HDRI in the Asset Handler, with a selected Domelight Node in the Network View, will instantly change the Input and Thumbnail of the Domelight.
LINUX: change the Houdini Compositing Preference to a higher Resolution Limit.
Additional Note: None exist Thumbnails and Meta Data will created or re-created over the “Scan” process.
With Version 1.07 Linux also use are working OpenCV Library. So COPs are deprecated.