Every time I try to install ORB, the process hangs on alloc.txt. Stardock Central still works normally, it just never gets past unpacking this file. I also downloaded an archive of the game and tried restoring that, but Stardock Central started to download the game again.
If it's any help, I looked around the Stardock/Temp directory to find the file and noticed two versions of it in the same place, "alloc.txt" at 0kb, and "alloc.txt_" at 1kb. Might deleting the 0kb version before Stardock Central starts unpacking it fix the problem?