I would just ignore that and check if v6.36rc latest build fixes the problem. v6.34.4 build does not contain all of the latest changes when if comes to the dude server, so I seen no point in staying on this version unless it's production VM performing some other tasks also. In new builds we have changed how syslog server works. It now partially relies on ROS log. So now it's possible to view it both through ROS log and The Dude client. By this change old log(prior to this change) are not accessible by the dude server anymore. Old syslog files will be still there in The Dude data dir tho.
Yes, at the moment the dude logs are not automatically exported anymore. We have to think about how we want to approach this problem and re-implement this in a new way.