Part disappears in an assembly mesh 2

[blakgrei]

Hello all, I am a high school teacher using COSMOS in my classroom. Currently my students are trying to model a crane assembly which consists of two parts, a crane arm and a base which are hinged together using the pin connector. When some of my students go to mesh their 2 part assembly only one part will mesh and the other will disappear and I will get an error. Most of my students projects are working fine.

How can I get the computer to mesh both parts and complete the simulation?

 

[PeteDB]

If a change was made to a component after the study was created you may have to use the "UPDATE ALL COMPONENTS" commnad. (to find this command: right click the study) After doing this make sure the material definitions are still there, too.

 

[blakgrei]

Thank you for the help PeteDB, I've tried your solution and it has solved the problem.