Exchange 2019 CU12 brand new install ECP redirects to OWA

Hello again,
I did a little digging. I'm unsure if it's related but the old exchange server is having replication errors. It seems like it is unable to accept any changes from any DC.

Last attempt @ 2023-04-21 18:45:42 failed, result 8456 (0x2108):
The source server is currently rejecting replication requests.

I'm thinking the root of the old exchange server being problematic lies there but if I can get into the ECP on the new Exchange server I'm going to try to move the mailboxes over to the new Exchange server and just remove Exchange from the old server and just demote it in about a week. The new Exchange server and the FSMO DC are replicating correctly. 

It would explain why all the new users I am creating cannot log on to Exchange OWA. I checked in AD on the offending server and no new users are present. 

Hopefully someone can shed some light as to why it is getting redirected to the OWA page.

For reference here is the error from the FSMO server telling me that the Exchange server is rejecting requests

ActiveDirectory_DomainService
EventID 1925
Additional Data 
Error value: 
8456 The source server is currently rejecting replication requests.


and from the offending server

ActiveDirectory_DomainService
EventID 2103
The Active Directory Domain Services database has been restored using an unsupported restoration procedure. 
Active Directory Domain Services will be unable to log on users while this condition persists. As a result, the Net Logon service has paused. 
User Action 
See previous event logs for details.

 My registry on the offending server (the Old Exchange) is indeed

• Path: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NTDS\Parameters
• #define DSA_WRITABLE_CORRUPT_UTDV 8

I should add these are Hyper-V servers and I believe the Exchange server VHDX files were copied over from one physical server to another physical server last year. Which is when the errors started showing up. It wasn't done with an export it was just copy pasted and we kept the UUID and didn't generate a new one. I am unsure if that is the root cause of this but I'd like to get the redirect on the new server solved so I can move the mailboxes over.

Thanks!

PS: One final thing (again unsure if it's related to the redirect) but when I installed Ex2019 CU12 I was forced to download and install IIS URL Rewrite

https://www.iis.net/downloads/microsoft/url-rewrite