I set up the software in order to erase old files when there is low space on disk, but it doesn't erase them, besides it's configuration is made. How can I solve this problem?
You need to configure additional settings for the files to auto-delete. Access the Settings menu then go to Record screen. Configure the Del Path and then modify the Min disk free space (GB) option. Additionally, you can also check the Auto delete the earlist file.
