Thank you Bad Mister for your effort and detailed information. Now it’s very clear how import process must be done. I didn't have that problem when I ...

I just discovered something new. During the process of importing, library categorization was lost. And, as I said earlier, I changed other parts categ...

I found out what was causing the problem. Maybe it will help somebody. Categorisation is organized by part not by performance. My performances are mos...