: It fixed a bug from version 1.6.01 where layer settings would not revert to universal defaults unless custom defaults had been saved.
After the failure, open LightBurn_install_log.txt and search for “Return value 3” or “Error 1603”. The line immediately preceding will often reveal the specific file or registry key causing the problem. lightburn 1603
Error 1603 can occur if the Windows Installer service is disabled. : It fixed a bug from version 1
What’s improved (high-level)
Another frequent cause is of a previous LightBurn installation. If an old version was uninstalled improperly, orphaned registry keys or DLL files can confuse the new installer, leading it to believe a conflicting version is already present. Similarly, a corrupted Windows Installer package or a lack of disk space can trigger the error. lightburn 1603