Can't copy borrowed movie from iTunes to iPad mini, because it's said that it is almost copied to another device, which is not true. Any solution?

I just borrowed a movie on iTunes a few days ago. Now I would like to copy that to my iPad mini, via iTunes. After a minute copying, it stops and it's said, that the movie could not be copied, because it is almost copied to another computer or device.

 

Can anybody help me with the problem?

Thanks!

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