The SDB2 suspension (filter-1) seemed stuck and was at the bottom position so I was called; I could move filter-1 up by 2mm with the microsprings (and filter-0 by 1.5mm) to get the control in range again and closed the loops (both angular control on the bench, SDB2_LC, and position control on the chain, SBE_SDB2). The bench is controlled as normal.