Report in Bandwithd resets, when pfsense reset

[s.h.binandeh]

Hi,
There is a kind of problem in BandwidthD Report of internet usage,
the problem when happens when e.g we experience a power lost of PFsense,
so all reports about internet usage is gone.
simply you see that the report of e.g this day and the whole week and month of bandwidthD is the same
so I think BandwidthD just don't dump that info in HDD and it remain them in RAM maybe,
so when the power is lost that information is not accessible .
is there any patch or solution ?