Views are disappearing off of sheets

[marcbartolucci]

I am working on a somewhat busy project with about 5 or 6 people connected to a central file. The project is pretty far along with many sheets set up and completed. The issue that has been coming up more and more is that views just seem to mysteriously disappear from what I would guess are random sheets. For example, the sheet with our site plan, including a legend and another view for general notes all disapeared for no aparent reason (view still exists, just had to replace it on the sheet). It has also happened with curtain wall elevations, wall sections, plan details, etc. I am not sure if it happens from syncing or not because we're never working on the sheet when it happens, and usually just notice it later.

Does anyone have any ideas? 

[hmunsell]

i was holding of on replying to this to see if anyone else had anything..... 

we had a similar issue a long time ago, several versions ago. It boiled down to the number of people in the model at the same time. When we limited people to only 3-4 in a model at a time, the models performed better and some of issues, like what you describe, went away. not sure what the actual root cause was, but the models preformed better with only 3 people in them vs 6 or 7.