Hello Vladimir,
You might find it strange but our team keeps on encountering this issue.
Regarding this “have you already restored your missed logic? because I do not see any empty logic”
yes, we are forced to keep backups in order to secure our changes since it keeps on getting lost. We have now successfully restore the logic that are getting resets.
Regarding “I can see lots of directories of Codeless Business Logic, could you please describe us how you backup/restore the files”
we keep backups here: Root > servercode/backups
The folder “Servercode_up” is created by one of your support team when we asked them to restore a logic that was gone during after Backendess Server went down. here is the support ticket during that issue: Can't access admin panel - #15 by jaypee_peros
Regarding how to backup and restore, our team learned it via trial and error method since we can’t find any document specifying how it is done in a detailed manner.
First we download a codeless zip file from our backup
We locate the affected by going to [Service Name ] > Draft > services > [method name] > then locate the xml of the affected file.
then we update the live one xml data with the backup one via File Edit feature on your files directory.
Let me know what other details you want to know.
Thanks,
Jaypee