Glad you got it sorted.
Were you looking at Deleted folders, or just shared folders, or a combination? When I shared mine, the screen updated immediately so show the changes. I will assume if I was had one of the folders open, I would get some type of warning message.
The other thing I was thinking was possibly a cache situation where you were still seeing the offline files. But I suppose they would show up in the Network area also.
And the only other possible thing is whether you have network discovery enabled or not.
Anyway, maybe someone else will have an easier way when they read the thread later.