As of October 2025, a specific Windows update has been identified as a major cause for L-Connect 3 appearing blank or failing to detect devices. Uninstall Update KB5066835 : This specific update (or KB50663835 ) is often the culprit. Settings > Windows Update > Update history Uninstall updates and find the matching KB number.
L-Connect 3 has a known bug with saving profiles. l-connect fix