hexaflexa

I think I figured out the problem The current version (0.18) has this [function definition](https://www.open3d.org/docs/release/python_api/open3d.io.write_point_cloud.html): `open3d.io.write_point_cloud(filename, pointcloud, format='auto', write_ascii=False, compressed=False, print_progress=False)` but an older version (0.17) has [a different function...

Hi @errissa, I am not an expert in the Open3D code (only discovered it a few days ago). But would changing the python signature of `write_point_cloud` make it inconsistent with...

I think when you pass `selectedPaint` into the Paint() copy constructor for nonSelectedPaint, it ends up modifying `selectedPaint` to GREEN. This is why the OP sees all three green boxes....

Hi @alan412, I saw this issue of all three rectangles being green (thus clobbering the original red) when running the code on EOCV-Sim, so maybe the problem stems from there....

The fix in EOCV-Sim 3.4.3 works, so I believe this issue can be closed.