Part Not Appearing Under View In Model Tab Of Drawing

[dustin.hallHEM8N]

I've opened an Inventor .idw drawing that contains four separate views of the same .ipt part.  For some reason, when expanding the View Tree in the Model Tab, the part does not appear there.  This is true in the tree of every View.  This drawing had previously worked normally and showed the part under each View's Tree.  I've opened a few other drawings and noticed the same thing occurring.  I thought it may have something to do with my settings or my machine, so I had a colleague open the same drawings, and he is seeing the same issue.  The .ipt files do show up in the Vault tab, and do update when changes are made, so the link is not totally broken, but this is a behavior I've never seen in over a decade of working with Inventor. 

[SBix26]

What version of Inventor are you using?

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Sam B

Inventor Pro 2025 | Windows 11 Home 23H2

[dustin.hallHEM8N]

Inventor Professional 2021

[johnsonshiue]

Hi! It looks like the drawing is corrupted. Try this and see if it helps. Copy the sheets and paste them to a new drawing. Does the part node reappear?

Do you know how the drawing get to this state? Did you force the drawing that used to reference an assembly to resolve to a part or vice versa?

Many thanks!

[dustin.hallHEM8N]

Copying the Sheet into a new drawing did allow the part node to reappear.  I guess that would confirm that the drawing is corrupted, correct?

I'm not sure how the drawing got to this state.  I created the drawing originally and then checked it in to Vault.  I did get a new machine before the next time I opened it from Vault,  but I don't think that I forced the drawing to resolve anything.  It has always only referenced a single assembly.

[Oscar_Gomez747F8]

I have the same problem.  Drawing views were completely visible on a multi page, single part drawing.  Then I added draft angles and radii to the model.  Afterwards the base view and other associated views did no longer show part details.  I tried making a new dwg, but the details only flash momentarily and ultimately disappear when the view is created.