guthwine

I also have this same graphics corruption on Big Sur. I have imac 2019. I encountered this graphic error or problem after Escape The Darkwalker update. Yes Force Glcore works, but I had performance (instant contractions and heaviness etc.)problems and there were problems with the sounds. With the last update of 2021, sound problems seem to have improved, but the chart still needs force glore. I hope you will find a solution to this. Stay healthy.