[Elecraft] P3 Beta 0050 - Transverter issue

[G3XDY]

I have downloaded the new Beta for the K3 and P3, all seems to be working OK 
on the HF bands, but I seem to have a problem with the P3 when using my 23cm 
transverter on Xvtr Band 4 (converting to 28MHz). On all the other bands I 
can get the usual panadaptor and waterfall displays, but on 23cm there is no 
spectrum display on the panadapter (for any signal level or ref level) but 
the waterfall turns bright red across the screen. When first powered on  I 
can see what looks like a correct display for a second or two, then it 
disappears. The P3 transverter gain calibration setting does not appear to 
do anything, having selected band 4, pressing the knob again gives an 
onscreen display of "nan" and turning/pressing the select knob has no 
effect. Anyone seen similar symptoms?

73

John G3XDY
K3 #689
P3 #514