Comment 6 for bug 1748401

Hello Wayne!
I understood my mistake. The sheets in the "building-blocks" folder should not have in their path a folder "building-blocks". It is obvious.
Such paths were left for the reason that I copied the "DI16.sch" file from the project root folder to the "building-blocks" folder. And it worked until a certain moment...
Thanks for the fix and for pointing out my mistake! :)