Unselectable line from placing ductwork

[SamuelNP2TM]

I am an architect, but I'm posting this to the MEP forum because I think it's more appropriate here. I was modelling ducts in for a project. This isn't something we typically do but the ducts are exposed and it's an existing timber framed building, so catching clashes and controlling duct placement on the architectural drawings is important. 

While I was dragging the end of one duct, it "snapped" hundreds of feet away, to some random point way outside the building. There was a random line that appeared. I deleted the errant duct, but the line persisted. No matter how much I tab, I can't select this linework. 

The line appears as a line no matter the coarseness of the view, so I don't think it's a symbolic line. It's definitely something related to a "duct" because when I turn off "Ducts" in the view settings, the line does disappear.

Before anyone answers "turn off ducts" in view settings, we have in most cases - however, we need to show ductwork on RCP's, but we definitely do not want this line showing up (which it does, of course).

Please help 🙂

[iainsavage]

Are you able to upload your model for interrogation?

[SamuelNP2TM]

Unfortunately I can't, due to company policy. 

[iainsavage]

Difficult to help you then.

It would be a guessing game without the ability to get into the model.

[SamuelNP2TM]

I just asked my supervisors if i can upload a stripped down version of the model... fingers crossed!

[s.borello]

Does that line plot on a PDF?

[SamuelNP2TM]

Yes, it does print.

[fabiosato]

Hello,

Did you check if it does not belong to a linked DWG or any other linked file?

[SamuelNP2TM]

Hello, thanks Fabio - it is not from a linked DWG or other files

[SamuelNP2TM]

Hi Ian,

I uploaded the model, please see the original post which I have edited to upload the model. 

Thank you for your time and consideration into the matter! 

[RobDraw]

[SamuelNP2TM]

How were you able to select it? No matter what i try, i cannot select it. Some context other than a screenshot would be helpful. Thanks Rob!

[ToanDN · Accepted solution]

Create a duct schedule, sort by length descending, select the 1st row (1000' duct) then switch to the 3d view to see it being selected.  You can just delete the schedule row and the duct will be deleted right away.

[SamuelNP2TM]

THANK YOU!! Interestingly enough, once I went to 3D view it deselected the item, which is not the behavior I would expect (I've done this method to find random doors before).

I was able to delete it directly in the schedule; however.

Great idea, thanks again!

[RobDraw]

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@SamuelNP2TM wrote:

How were you able to select it? No matter what i try, i cannot select it. Some context other than a screenshot would be helpful. Thanks Rob!

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The first time, I did it with a window select after doing a couple of things and thought I could repeat it easily. I went back to verify my steps and it didn't work. I then did a lot of deleting and ended up with nothing but the duct and the system. It was quite easy from there.

This is the element ID:

6403544,6403624

[ToanDN]

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@SamuelNP2TM wrote:
once I went to 3D view it deselected the item, which is not the behavior I would expect

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Open both schedule and the 3d view then it can still be highlighted when you switch the view.