NAS540 backup schedule with rsync

Every time the hour change (winter/sommer), the schedule planed backup with rsync must be deleted and re-enter... If you don't make this, the job won't work at the good time. If you just modifiy and re-enter the date and our, no change, the problem stay. For me there is a problem in the backup planner and the resgistration hours in config file...
Am I alone ?

#NAS_October