Phantom wall impacting room areas

[melindav]

We are working on a remodel project where the Revit model was started a few years ago, by staff that is no longer here, so not available to question what may have happened here. 

Now that we are beginning to work on it again, there appears to be a phantom wall intersecting rooms on one floor.  No existing, demo or new walls are located here on this level or above/below.  There are also no hidden room separation lines.  This 'phantom wall' appears to be 8" and impacts the rooms in both the existing and new construction phases, in plan, section and 3D views. 

We have tried all the various ways around tracking this wall/room separation down, and have yet to find it.  Room Separation lines are visible, and none are anywhere near this part of the building. Filtering out all walls, at all levels does not find anything here either.  Similarly, going thru all the wall types in the project and choosing to 'Select all Instances' does not find anything at this location.  Same with doors, just in case there is a 20' long door opening or something. No model items are hidden at this location.  Other walls and room separation lines can intersect/interact with this, but you can not select to extend to it or snap to its end.

Have purged and audited the project with no changes. 

Snapshots below show with the room(s) surrounding this area selected for ease of viewing them being intersected; shown in the 'new construction' plan and section thru the corridor (but the existing and demo act the same). Going back to early PDF prints of the project the original staff worked on, shows as masking out the rooms there as well, so assume whatever originally caused this was un-intentional and ignored at the time.

Any suggestions on what else to look for?  

(we are currently working on this in R-19, but have also upgraded a copy to R-21 without change).

Plan view - new construction

section view

[barthbradley]

Do you have a soffit interacting with the rooms? 

Edit: actually, there has been a couple of posts in the past year about a simular "phantom" issue. One of which the OP posted their file and I couldn't find the source either.   If you want to post your file, I'll see what I can determine.  

[melindav]

no soffits. there is a vaulted ceiling, but it does not happen where this is occurring.

[martijn_pater]

Perhaps it could be a wall in temporary phase? Would be easier to see with the file.

[melindav]

There also are no temp walls.

[martijn_pater]

How did you check? Btw it would be so much easier if you could share the file or do you want us to continue this guessing game?

[syman2000]

Do this project have links that has room boundary enable? Also set the phase filter to none so you will see all objects on display.

[martijn_pater]

Could be a wall with edited profile, it won't show up in plan as it's 'hovering' above (or below).

[melindav]

there are no linked items in this file, so it isnt something coming from another model.

I had already looked for walls with custom profiles, and nothing in this half of the building.  

Setting the phasing to 'show all does not find anything interfering in this area.

[RobDraw]

Have you tried revealing hidden elements? (The light bulb on the bottom.)

[barthbradley]

Could very well be a BUG. As I said, there has been 2 threads in the past year that I have participated in that have involved the same exact phenom.  If you cannot post your file here for us to examine, may I suggest that you open a Support Case through your Autodesk Account Portal and submit your file to them for testing.  If you do, please let us know what they find.  

[syman2000]

See if there is a thin roof or floor hiding below the view cut line. I've seen a case where a thin floor slab acting as tile was 1/2" above the floor level and it cause the room object to avoid that area.

[benJBZ6H]

I realize that this is an old topic, but, for the benefit of anyone else searching for an answer (I was, that's how I landed here).

I was having a similar issue, tried revealing hidden elements, there were no walls, room separation lines, soffits, etc.

However, I found that a wall below the room in question had a broken attachment to a roof which had been moved.  When the roof was in it's prior place, the wall below did extend up.  So, I did "detach all" to the wall, and detached the wall from the roof, and the problem was solved.  So, check your model warnings; I had a warning about the broken wall-roof attachment which I had not attended to.

Hopefully someone else will find this helpful.

[hzahraU6ZKW]

We've looked at a lot of forums and had our whole team trying to solve this same issue. For us, it turned out to be the model we received from another firm used worksets as design options and there were a bunch of design iterations on hidden worksets.

[handjonathan]

Hi @Anonymous 

Thanks a lot for posting your question to the forums!   Has the solution suggested by @hzahraU6ZKW helped with your issue?
 
We look forward to hearing back from you with more information so we can help you as a community! 

[mdellehunt]

I stumbled here having issues with this same anomaly in a current project of mine, and after much trial and error in a detached model I found that at least my version of this problem was caused by walls that somehow 'remained' in the project but were located in worksets that no-longer existed. Thus there was no method to unhide, purge them in any way visually. 

I was able to 'find' them, by placing a wall of roughly equal width, directly on top of the phantom wall, creating a new error about overlapping walls. In said error message I could see the Element ID of said two walls. I then used select element by ID and typed in the missing wall #. And got this for the properties of said wall, showing that Workset was 'Invalid'. 

Deleting the wall outright did not work, but once I changed the workset to an 'actual' workset that existed in the model, I was able to see the wall, and then delete it as well. 

I genuinely have no idea how this occurred in the model, but I hope this is helpful to others who come across this!