invisible windows/doors on plan after updating linked files

[Anonymous]

Using Arch9 (on MacG4) after updating linked files windows and doors randomly become invisble with pieces of drawing artifacts sometimes showing up in their place. This only happens sometimes after updating a linked file. The doors and windows are there and pickable but invisible.

Doing some actions in the plan sometimes jogs some windows and/or doors back to visible. Picking and moving them individually will also make them visible.

Anyone experience a similar problem or have any suggestions to fix?
Thanks,

[Anonymous]

Do you have Open GL on in your work Environment for 2D redraw? I tried using this for a while, but gave up as several times the drawing display seemed to behave strangely.

[Anonymous]

Thanks but i'm not using OpenGL though i have checked for the simplified 2d model in 2d navigation so maybe changing that to "full model" will clear up some of those problems.