It is problem with CLK data to panel, i have same issue, but i searching for scheme on bn94-16986R. Horizontal lines = CLK data problem. You can solved with tape on one of sides panel, you put tape on CLK pins or pin, but you need scheme like me or you can laborate and search with diod test on multimeter. PIN out on that flex cables what goes from Tcon desk to electronic on panel. It is full YT with manual how on that.