library not loading; can't see files in subdirectory

I've found some questions on this searching around, but not a solution.

I have the Architect8-LCAD directory in my c: drive, so my library path is set to C:\Architect8-LCAD\  I read another post that said you can't embed the directory too far down in the structure, so it's right there at the c: drive level.

After starting Librecad, I see in the Library Browser, under Directories, Furniture8, and two subdirectories 3000x3000 and Complete8

I can't open those sub-directories in the library browser.

Running Windows 10.

What am I doing wrong?

I don't know what could be the reason, it works for me. In a test I have it at D:\Architect8-LCAD\, as D: is my data partition, but that should make no difference. I am on Win XP still. A Win 10 issue?