No Contours Found in the Vector Data

Hello!
I can’t add my letters from Illustrator to FontCreator. When I try to do this i have an answer “no contours found in the vector data”.
My contours are closed.
Here is a file
A letter.ai (48.2 KB)

This is what I see when I import it into the latest version of FontCreator 11.5

After Import
After.png
After Moving the Inner Contour
Before.png
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