I would expect that you may need to recreate one of the central files, or at least open them up individually with Audit enabled.

2) It’s possible that the view was corrupt, and that was why it was displaying differently in 3D versus plan.

One situation I have come across frequently is elements such as furniture become hosted to a floor, versus associated with the level datum. This can happen even when families that are not designed to be hosted are placed – very unpredictable.

When the floor face is hosting members of a group, it becomes very difficult to place the group on a different level, as those elements belonging within the new group instance become “sticky” to the original floor. The only way around this is to ensure the floor category is not visible while placing the original elements you intend to group, or place them off to the side, outside the building and then move into position.

1. Links: We link units into a building and then the building into the site. The site file has become impossibly difficult to deal with. We have about 20 unit types and around 450 instances of those 20 types. Is it normal to have this much difficulty with a double linked file? Our site file crashes often and is very slow. There is definiltey something wrong and I am troubleshooting as best I can.
2. Groups: We have one floor of the building that seems to “ungroup” the groups that are placed on that floor. The groups are still identified as groups when you try to change a wall or element but each individual element looks detached from the group. You don’t get the normal group box when hovering over the group. You still get the box in a 3D view but not in plan. Any thoughts?

Thanks.

So since your collections of repeating elements contain walls, linked Revit models would be your best approach. Thankfully, The Factory gave us the ability to save a group as a RVT file, which can then be linked in. When projects become very large, the other advantage of this approach is you can document and create sheets for the units as a standalone file. You can also manage how much detail is brought into the main project, by placing those things you do not need to see in the assembled building into their own worksets, and choose not to include those worksets when linking.

This approach goes back to the way we did unit plans back in AutoCAD, and later ADT at the first firm I worked almost 15 years ago in the little city of Newburyport, Massachusetts. Check it out if your ever travelling. It’s a great little New England town. Stop in to EGA Architects, and tell them I said hey!

Having constrain-based, parametric modeling, which also allows sustainable design analysis makes me happy. The ability to simultaneously have multiple designers work on a single file across the WAN on both ends on the country or the opposite side of the world in real time makes the firm happy.