I've tried everything possible. New cables, new Blu-ray player, nothing fixes the Dolby Atmos dropouts. They happen on the TV and soundbar. Doesn't matter how things are plugged in. Tried it with the player plugged into the TV and tried it with the player plugged into the soundbar. There is no solution. Samsung cannot do Atmos competently.
welcome to the world of Samsung. Take your money, look good on the cover, but big POS with functionality, until your product dies prematurely. Then they don't help.
pro tip sell it and move on from Samsung.