@Stamm – quite another thing related:
To transfer paths from Illustrator to InDesign is now possible with CC Libraries.
Add a path to a CC Library in Illustrator 2014.
Switch to InDesign CC 2014.2.
Drag that path out to an InDesign page.
No problems anymore with the invisible 1pt stroke weights.
Also and important:
You can also do this with empty paths objects from Illustrator.
Copy/paste of empty paths from Illustrator to InDesign is not possible.
Even if they are part of a group with other paths with a fill color or a stroke color.
If you copy/paste a group of Illustrator paths to InDesign only the ones with a fill color or a stroke color will survive.
And there is no error message in this case.
Uwe