Since updating my HW-Q950T soundbar firmware to version 1019.5, the speakers crackle/pop when I change TV channel. It seems to happen when I change from a standard definition to high definition channel and vice versa. However changing from HD to HD or SD to SD, it is fine. This occurs when using the TV's in built tuner and also an external Sky Q satellite receiver. It also occurs when using apps such as Netflix or Amazon Prime. The TV is a Samsung QE65Q90T (firmware 1497.0) The sound is output through the tv & soundbar via Q Symphony (HDMI-eARC). The Sound Mode is Adaptive Sound. The HDMI-eARC Mode is Auto. The Digital Output Audio Format is Pass-through and Dolby Atmos Compatibility is on. If I switch eARC mode off, the crackling stops but I loos the eARC benefits such as Lip Sync. The crackling/popping noises only started occuring after I updated the soundbar firmware from 1017 to 1019. I've contacted Samsung support but they just had me reset the TV & Soundbar which didn't solve the problem. Does anyone have any ideas what may be causing the crackling/popping and how to get rid of it without switching off eARC? Many thanks!