3d elements disappear with InRoads

Hi!

I am having issues with multiple workstations/users with a 3d file (that our office did not produce) that has elements that some disappear when InRoads is running but fine in Microstation. We want to use as a 3d file - so exporting to 2D is not an option.

Things that I've tried so far:

1) change active z-depth & display depth

2) delete temporary survey elements (though there were none apparently in the file)

3) Upgraded to SS2 for Inroads

What I found on another site was something about a tool called "remove user data" - which I have yet to find and use. 

Would appreciate any help!

Thank you!

Christina

MicroStation V8i SS 1 | 08.11.07.180

InRoads SS2 | 08.11.07.566

Windows 7 OS