[Elecraft] K3 #170 CW Filter oddity

[Rajiv Dewan, N2RD]

I have 250Hz, 400Hz and 2.8KHz roofing filters installed.  After update 
to the latest firm ware I am noticing that the radio goes really deaf 
when the 250Hz or the 400Hz filters are used.  I have set the 
appropriate gain of 4db and 2db, respectively for the 250Hz and 400Hz 
filters.  The FLX FRQ is 0.0 for all.  But the deafness is much more 
profound than a few dB.

I noticed that the peak in my signal is not where CWT indicates perfect tune
While I am tuned to a CW signal at 7.02706KHz, I turned on CONFIG:DDS 
FRQ and noticed that this frequency changes from 3.581367 MHz to 
3.581579 MHz and the radio goes deaf.  No change in tuned frequency.  I 
checked that the FL FREQ for these filters is 0.0.  What gives?

Does any of you have the same behavior?

Regards,
Raj, N2RD