Truss Symbols Disappear in OpenGL

[JimDenaultASC]

I am having a problem with certain truss symbols disappearing in OpenGL and RW, but are visible in Wireframe view. I have gone through all the usual class visibility and layer visibility checks. These symbols are all from the VW Library. As far as I can tell all settings and classes are the same, yet only certain ones exhibit this behavior. Any clues for what I am missing?

 

Here is a video switching render modes from OpenGL to Wireframe.

 

Edited October 2, 2021 by JimDenaultASC
wrong attachment

[Peter Neufeld.]

Dear Jim,

I had a user with the same problem last week. The particular symbol was Eurotruss Corn FD44-T. I received the file and can not find rhyme nor reason why it was happening. Unfortunately I was unable to replicate the issue and his hardware was sufficient. What symbols are you using? If you copy and paste just the truss into a blank file does the problem still occur?

 

Cheers,

Peter

[jcogdell]

Have you tried turning off the VGM graphics cache in the document display settings?
 

 

[craigboy]

Just had the exact same issue using Global F45300 symbol. The symbol exists in wireframe and can be selected in Open GL but is not visible if not selected in open Gl or render environments. I ended up swapping for F44300 symbols to get the drawing finished.