[Elecraft] Second RX problems

[Bjorn SM0MDG]

Hi,

I am setting up for the CQ160 SSB contest and notice a strange behaviour with my K3. Opening the second RX there are no received signals. Second RX/Diversity works well in CW, but not in SSB. If I go into settings and filter settings, then press SUB the receiver starts. It continues working until I touch the filter adjustments or any of the other rotary encoders SHIFT, WIDTH, SPEED/MIC or CMP/PWR. 

I can remember I changed any settings relating to filters and second RX in a long time.

Any ideas out there?

73 de Björn,
SM0MDG
SE0X