Strange lines in imported revit family

[job.vrolijk]

Hello, I have some strange lines in a Revit Family model imported from Inventor. In the picture you can see that there are some thin lines, how can I turn these lines off because they also appear on the 2d drawingsheets.

[pendean]

Can you share an actual file?

[job.vrolijk]

Here you go

[barthbradley]

Why don't just model this "thing" in Revit?  Take you a couple of minutes.  

[job.vrolijk]

Yes I know, but I first want to see if it can be fixed so our workflow can stay the same.

[stefan_gokstorp · Accepted solution]

not sure what the lines are (polyline curves that for some reason become visibile is my guess.) but if you explode the object in the family and drag the higher edge forward then return it to the original position they disapear no idea why though.

[ToanDN]

How did you create this RFA?  Have you tried to save IPT to ADSK then open it instead?