Black screen with VGA to SCART RGB cable just on one TV

Hi! I have a misterfpga with an analog IO board and I am using the official VGA to SCART RGB cable for my CRT Tvs.

I am getting a black screen just on one TV (Disney Cars CRT tv), everything works fine on my other CRTs. And yes, I have tried other RGB devices (example PS2 in RGB mode) and they work fine. When I say black screen, I mean a faint flicker at the top of the screen and everything else is black. The TV does detect the mister because it switches to that input.

What I tried: \- setting SOG (sync on green) to on, no luck

\- i changed the 5v jumper for the VGA port to 3.3v, no luck either

The cable already has a 470 ohm resistor on the sync line. Any ideas? Thanks