Objects appear transparent in shaded view and lines show through

Hello!

I have been having an issue with my Rhino 8 where I have received a Rhino 7 file, opened it without issues, but the lines and 3d objects that are already there, appear transparent, almost as if they were in ghosted mode. All the layers are set to Display Mode by Layer, and I have also used the SetDisplayMode on the Objects, When I make my own lines, it does not appear transparent, I am unsure how to fix this! Thank you for any advice!

Maybe ClearDrawOrder works?

Thank you so much! This did it!