[Elecraft] K3 appears to be in AM even though mode says DATA

[Tom Azlin W7SUA]

Hi.

My K3 seems to switch to AM around 5 MHz even though the display says 
DATA. And the filter highlight on my P3 also switches to the AM width 
around tuned freq.

Earlier I had tuned to 5 MHz WWV to do a sound card calibration and 
switched mode to AM. Now was trying to test my fldigi FMT Modem against 
5 MHz WWV so switched to DATA. Still shows as if I am in AM mode.

Anyone have an idea what is happening?

73, tom w7sua