Home folder shared only 1-way between identically configured machines

I have two machines running Windows 10 – ermintrude and dougal – and I want my home folder on each to be shared with the other on my home network. dougal can see my home folder on ermintrude, but not the other way round. I have been through all the advanced sharing settings on each machine and compared them, and I have done the same for the sharing settings for each home folder, but I cannot find any difference between them. They are identical. Each is set to share as owner using the same Hotmail address as login and the same password. As I said, I cannot find anything different between the two configurations. Why is my home folder on dougal invisible to me on ermintrude?

It depends which of the PCs was turned on first. The first one to boot up will be able to see the other but not the other way around. It is a bug in W10 at the moment.

Thanks for the info. But is there a reason why the bug only appears some of the time? For instance right now both my machines can see each other.

I don't know why the behaviour varies. There are some other threads on here which talk about it and may have more information.