Wrong preview for the Daily Plan

Current Situation

When opening the Daily Plan View with Show Daily Plan from the menu of an order a job the plan is shown correctly for the actual month.
Navigating to the next month will show an empty plan.

Desired Behavior

The Daily Plan should show a correct plan even when navigation through the months.

Reson for the Behavior

The reason for this is a wrong post body in the webservice call
dateFrom":"-11M","dateTo":"-11M

{"jobschedulerId":"scheduler_joc_cockpit","states":["PLANNED"],"orderId":"event_processor","jobChain":"/sos/events/scheduler_event_service","dateFrom":"-11M","dateTo":"-11M","timeZone":"Europe/Berlin"}