Walkera QR Ladybird v2 FPV video problem

[rankorn]

Hello
I have the Walkera QR Ladybird v2 FPV with Devo F4 tx.
The quad flies without any problems, it's stable and fun.

The problem is with the video input...

When the motors are off, I can see video input on my remote. It seems quite clear without interference.
When I start the motors, even when holding it in my hands and of course during flight, the LCD screen on the Devo becomes blue. When I land and shut down the engines video is back.

Any ideas what might be the problem??