Graphical glitch in Out Run (PCE HuCard)

Hey all! I am playing the beautiful PC Engine port of Out Run via the PCE / TurboGrafx adapter on Analogue Pocket, but every time I reach the first intersection (end of level 1), the road starts to glitch.

Is this a know issue? I have cleaned the pins, switched the mode to PCE (Jp) but not sure what else to try?

Thank you!