Made an idiotic mistake. Was trying to solve a sysvol/netlogon issue on a newly built off site DC. Was doing research and someone wrote that I should run the d4 flag in burflags. It was flagged as the correct answer so I didn't dig into it further as it was1am. And I've never had to do a restore so was unaware of what that flag was. After I ran it I started digging more into it and realized what I've done. I checked my other DCs and they seem to be fine, I did not disable frs on the other DCs nor did I run an unauthoritative restore on them.
So I don't know how to assess the damage I've done. GPOs are fine, dns changes, user changes seem to replicate just fine.
To be honest, I want to just demote this problematic off site DC, remove the meta data and start over but considering I already ran the authoritative restore on it, I wanted to see if anyone knew if there were some steps I needed to perform or items to check before I demote this server and start over. Any guidance be appreciated.