Prime 4+ computer mode Serato

Hi, on my Prime 4+ when switched in computer mode to work with Serato, the led meters of master are half enlighted and freezed (they begin to work properly only when Signal comes to the master) and the two signal leds near the mic level controls are amber enlighted. Is it normal? Hi hope so. I use Engine 4.1.0 and latest version of Serato on a recent M2 MacBook. Thank you for your help