DJI P3P and Goggles. Ok so I purchased a set of DGI goggles. to use with my P3P. I had to add the HDMI unit to the transmitter. Fine so the goggles are now connected to the Transmitter and they are working OK.. But I have discovered that as soon as I turn on the goggles (they then work fine) they show me all of the information on their screen. The image that was previously showing on the tablet disappears and I get a message on the tablet "no transmission signal " . If I turn off the goggles the image re appears on my tablet . And visa versa,, Is this normal? Any ideas? thank you.