Thats correct the recall was to do with video noise/jitter,
We are currently trying to accumulate info about any noise issues in this thread
Please try the troubleshooting steps there and follow up on that thread. We have had other users use the matriarch with Hypnos i believe but I’m not sure as to their experience with noise.
Since Hypno can be powered in many different ways with different gear it can be quite challenging to help in this matter. (In my experience with modular some devices straight up just don’t like each other in eurorack and i have gotten rid of noise issues just by shuffling modules/plugs.)