by Séverin Terrier.
Hi Paul,
I just wanted to say that i have the same problem, with Moodle 2.7.2+, on a linux box
Don't know if a tracker item already exists for that.
And in 2.7, they're considered has "obsolete logs method".
For the new (2.7) log method, things are worst : logs are not backed-up/restored : see MDL-46455
Séverin