CobianSoft

If this directory is a google drive, the the files are not located on your computer but on the cloud. The files can be forced to be accessible offline (i.e. all the time, I think)

Perhaps the error has been logged before the screen has been cleared? If you consult he log FILE (not the log tab), do you find an error there?

As soon I have some demo...

I have added a new Post-backup event to execute all tasks in the same group for the new Cobian Reflector.

Nothing is wrong:

1- The first backup will always be FULL
2- Differential backups don't reset the archive attribute (incremental do)

Agree.. Thanks!

Oh sorry, no there's no way. I think you could start one of the tasks and then start the next one in the group as a "post-backup event". Cumbersome...

Tasks- Run the current group

I see those unicode characters on the top... This is some kind of buffer overflow that sometimes happens when the log tab gets overfull. Could you please check the option Settings-Visuals-Limit the log tab capacity?

The log files are copied to the temporary directory when the files are being mailed, in order to compress them. For some reason (perhaps the mailing thread has crashed) the files were not successfully deleted.