We installed AD Connect and connected to our Office365 tenant, but users will not sync. I see all of them have duplicate attribute errors. I added the appropriate UPNs to my users so they are using a routable domain (.com instead of .local). I tried added proxy addresses for a couple of users, but they error out with UPN and proxy addresses. I try to use the troubleshooter in AD Connect Health, but the fixes fail to apply. Do I need to change the mS-DS-ConsistencyGuid attribute on my local users before syncing, and if so, to which value should I set it?