Flex 6400M and WSJT-X lines in decode screen

Scott Oakland

I am using the FLEX 6400M with SmartSDR and WSJT-X for FT8. When decoding, on occasion I get solid horizontal lines across the waterfall screen. They seem about a quarter inch apart from each other. They are solid green, against the blue background.I know there is a way to stop it, but don't know how.  I am able to decode, but it is happening a lot and I thought maybe there is a setting I am missing. It didn't do this when I used a legacy radio on FT8. Can anyone help? Thanks.

N8AUM

Screen shot would help

Scott Oakland

I think I know what's happening. It's normal to have time stamps on the left side (they were obscured by a wrong N Avg value) but when I changed it to 2 I see the time stamp and accompanying green line separating them which are there by design.