The latest bimx update fixed the problem! Thank you Roland

The worst display is on black and white model display, so I guess it’s not the shadows but the materials (?). Anyway hope you can resolve this guys, as bimx is definitely an every day pro tool… Thanks for your reply Roland 

Same issue on iPadOS 17.0.2…lines on shadows (or materials?)No issues on the same model on iOS 17.0.2