About Skein Algorithm
Hello. 
I really appreciate using this source code. 
Now I am converting this source code for me.

But I have a problem with skein algorithm. When I run this skein it is not working well.
So I just ran this algorithm only. And I got different results with the same nonce value though I fixed input. Could you help me?
When I use variant 1 for Monero v7. It is working different way what I thought. 

Is there any issue for skein algorithm?

If you answer this question, It would be great for me.
Thanks, Regards 
Joon