[Xymon] XymonPSClient CPU graphs missing over HTTPS

I'm using the XymonPSClient 2.42 on a Windows server, and all works fine except when I choose to send the data from the client to the server over https the CPU graph doesn't display on the server side. If I change the XymonPSClient to send over http the CPU graph displays correctly.? I've tried this on different hosts and results are always the same when using https.? Server is v4.3.30, but it was happening on an older version too.? Can anyone give me a clue how to resolve this?? There's no errors happening that I can see anywhere. I looked in the rrd folder and there is no 'cpu' or 'la' rrd file being created for the hosts that use the XymonPSClient over https.

Thanks, Kris Springer