<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />

From a support conversation:

Please include the version you are running, detail your problem and when you first noticed it. : Version 7.4.104
We have 4 realions built, Public to public, Public to private, private to public two way. The private to public two way is working fine, but the public to public and public to private are not working.
It did not work after the exchange server was rebooted.
Please advise.

A2E will not copy a copy

You say the public to private are good, but the public to public don’t work.  If you are expecting the copies from the private to go to the public and then go to the other public, they will not.

You must make a relationship directly from the source to the destination.  I would bet if you make an item in the public and sync it will go to the other public.

if you want all the items made from a private to go to other places, make a relationship from the source to where you want it and it should work as expected.