I have several OpiOne Plus boards. They differ by the date of manufacture (let's say 1st batch and 2nd batch)   1st batch: Works with kernel 5.10.x but does not boot kernel 5.15.x. Red light is on, power meter shows very little consumption, ethernet does not go up.  Switching to last available 5.10.x kernel resolves the situation. 2nd batch: Successfully work with both 5.10.x and work with 5.15.x. Green light is on, power meter shows adequate consumption, board