The computer becomes a stir of wood after edtion in MCEdit!

I did not copy it……

You edited the game world - these things happen. It isn't a bug of CC - there is nothing in the code that would turn it into wood. You probably did it accidentally.

I'd say MCEdit has some way to handle unknown blocks, which would be things like all mod blocks, you should check out those things as well, probably are wood too.

MCEdit handles unknown blocks by making them show as purple squares - it can handle them fine.

MCEdit also handles metadata correctly, is it wood from another mod? in that case the block ids are mismatched due to configs