Installing Repo’s

I have just installed Kodi 17 beta 2. i removed all data etc before installing.
I then put all the repo folders back in the addon folder and its seems
v17 B2 does not see these folders. I am on Win7 Pro

If i install a repo zip from online source then the repo appears.
I have turned on Use Unknown Repo’s.

Can you not just add a folder manually anymore.

thanks