dino Uli shared updated Orion build on your email, please test that and let us know if its still happening? Also please try toggling GPU process flags in Develop->Experimental Features GPU Process: Canvas Rendering GPU Process: DOM Rendering GPU Process: Media
dbflg Late reply. I have the same issue...same computer. MacPro5,1, macOS 10.14.6, AMD Radeon R9 280X (flashed). Anything that uses Google Map background shows up correctly for 1-2 seconds then has a red overlay. Thank you.