2.8" TFT Shield has a white bar

I have bought a mcufriend.com TFT Touchscreen Shield (st7781) and it works rather well - expect that I always have a white bar on the left side (see attachment).

I'm using a a little bit customized version of GitHub - yamsam/TFTLCD_ST7781: Arduino TFTLCD library for ST7781

This issue appears with every sketch I've tried (examples,...).

Thank you for any hints!

  • fodinabor