Retrotink + SNES; image/sound flickering?

Hi all,

If anyone here has the Retrotink, did you experience any issues where the image and sound will turn off for a few seconds, every 10 or so seconds? It's obviously unusable like this, but I'm unsure if it's the Retrotink, the TV, or the HDMI cable causing the issue. I've emailed the creator and he's responsive, but I was wondering if anyone has any insight on this as I continue to troubleshoot.

 

I havent had any issues using the RetrovisionHD cable (RGB to Component basically). The 240p mode likes to swap red and blue colors though.