K0COM,
Hard to tell why it happened without analysis of your system and program log.
But there is an easier way to recover. Your configuration files are backed up each time you close Log4OM, and multiple copies are kept - according to your settings in the Settings 1 tab. Also, if you have a secondary backup folder set (I would recommend) you can set "No Deletes" and have backups since you began using Log4OM.
Anyway, the default location of your backups is (for Windows 7, 8 or 10) Users\<name>\AppData\Roaming\Log4OM\Backup. In that folder you will find zip files for each backup made. Go back in time a few days and open the zip file and copy the config.xml file and paste it into your current configuration folder. You can find your current configuration folder by (in Log4OM) clicking on Help, Open Configuration Folder. Then you can copy the rest of the folders in the backup zip to your configuration folder to retain any User defined files like BandList, Cluster, etc.
I hope that helps.
Doug - W7DRM
Where did my config setting go? - RESOLVED
Re: Where did my config setting go? - RESOLVED
Doug - NN7D
Gig Harbor, WA, USA
Gig Harbor, WA, USA