Red line across all superior zone of the panels

[RavvenTw]

Hi

        Im having the red line problem in my panel chain. 
        I have checked and re-checked the Pi Gpio connection and (obviously) if i take out R1 pin the red line 
       dissapears (also red color).

        Im using 3 32x32 panels in one chain, a 3B + Pi and my C# code is:

new RGBLedMatrix(new RGBLedMatrixOptions { ChainLength = 3, Cols = 32, Rows = 32, Multiplexing = 1, GpioSlowdown = 4, ShowRefreshRate = false})

       ![Red line](https://i.imgur.com/lTBefcD.jpg)

       [Panels link](https://es.aliexpress.com/item/32635556560.html?gatewayAdapt=glo2esp&spm=a2g0o.9042311.0.0.274263c0blnaDG)

       ![Panels](https://i.imgur.com/kWzjZ9A.jpg)

       ![Pins](https://i.imgur.com/xISwdac.jpg)

       ![Pins](https://i.imgur.com/xo1X58J.jpg)

What im doing wrong?

[davemaster]

Greetings,

try different values of --led-multiplexing=0(default), 1, 2, 3, 4 ... 8 (this works for my outdoor P10 panels) 9, 10, 11..... also, asure to use --led-gpio-mapping= "regular"

best regards