That is exactly the error I get in Ubuntu using Wine to launch both LFS and LFSLazy. Obviously windows processes and linux processes are different, but they are still both processes on a fundamental level. Maybe there is just a small issue regarding how to attach to the process. Maybe the pid's are just called something different in Wine.
I don't see this as a support issue, because I don't think LFSLazy was designed for this. So it's more like a add-on feature / extended support. Still, any help on the issue would be greatly appreciated.