eS 127 Navionics Missing Chart Sounding Detail

Hi, I have two eS127 units networked, using Navionics charts. I've noticed a recent problem that I don't see the detailed chart soundings that I know are there. Yesterday I had soundings on the bridge MFD, but not the one in the Salon. Now neither have the soundings. There are a few on the chart, but very few and far between. Depth contours show fine. All other chart data shows fine. I have gone through every setting on the displays and can't identify the issue. Can you help me troubleshoot this.

Thanks, Hube Hopkins