osmocom_fft won't tune BladeRF lower than 300MHz

Hi. Today I installed latest gr-osmosdr. I want to run osmocom_fft and view the recorded file in "inspectrum". Osmocom_fft starts, runs, knows there is a BladeRF available and does work. only thing is that it does not allow tuning lower then 300 MHz as if the transverterboard is unknown to the osmocom_fft. I tried to start osmocom_fft with -a balderf but that does not help. If I set it to for example 145M it gives this message: Failed to set out of bound frequency: 1.45e+08 libbladerf is updated last weekend. Any ideas on this ? Thanks, Ben