Hyperdeck alpha channel alignment problem

I had a strange problem yesterday - the alpha channel coming from the hyperdeck via bidirectional SDI/hdmi micro converters was misaligned by approx 50 pixels horizontally. Changing to SDI to hdmi micro converters solved it. Sharing in case anyone finds the same headache and curious what the cause might be?

I’ve had this happen on my ATEM Mini, so it sounds like the problem is the converters. Usually unplugging and plugging back in the HDMI cable fixes the alignment.

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I had a similar thing happen to me a few times. Sony Z150 → sdi → bmd bidirectional → hdmi → TV
Sometimes when turning things on the image would be vertically split in half, ie, the lower half would be displayed above the upper. Replugging sdi didn’t help, replugging hdmi did.

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thanks both, good to know I’m not alone. I did search for the problem but didn’t turn up any results. Hopefully, this thread will help others.