SYSVOL to SYSVOL_DFSR issue

Hoping someone can help me out on this.

I have started the move from SYSVOL to SYSVOL_DFSR and gone through all the stages however when in now run dfsrmig/getmigrationstatei get 3 DCs that are giving issues.

One is in the START stage and the other 2 are int he Wating for initial Sync stage - the trouble is i've gone right the way to eliminated and now feel like i'm in deeper water!

Is there anything that can be run to see why these servers are no going to the next stage?

I thought everything was going so well as the dfsrmig was reporting good things until now and i could see things being copied to the SYSVOL_DFSR folders on the domain controllers.

Hopefully someone can get me out of this situation.

This is what i'm seeing at the moment:

C:\Windows\system32>dfsrmig /getmigrationstate

The following domain controllers have not reached Global state ('Eliminated'):

Domain Controller (Local Migration State) - DC Type
===================================================

SHS-VM-DC01 ('Start') - Writable DC
SHS-PHY-DC01 ('Waiting For Initial Sync') - Primary DC
SHS-VM-DC04 ('Waiting For Initial Sync') - Writable DC

Migration has not yet reached a consistent state on all domain controllers.
State information might be stale due to Active Directory Domain Services latency.

I have followed this guide https://support.microsoft.com/sw-ke/help/4493934/sysvol-dfsr-migration-fails-in-place-upgrade-dc and removed the 2019 server but i still have 2x 2016 servers and they are still reporting Waitign for Initial Sync.