Password Reset On-Premises Integration broken

Question

Working with a client that's having issues with getting password writeback to work, in Azure AD under Password Reset the On-premise Integration gives the message "Unfortunately, it looks like we can't connect to your on-premise writeback client right now." Tried all the troubleshooting steps for Troubleshoot SSPR Writeback, we were getting some errors in the Application Event Log, Source PasswordResetService Event ID 31034 and found we were missing three of the new certs in the Azure TLS certificate change. This still didn't resolve it so we upgraded to the latest version of Azure AD Connect which seems to have resolved the 31034 errors, only got them once more when trying to see if disabling and re-enabling writeback did anything. At this point the only things left to do are try a complete uninstall and re-install or open a case with Microsoft, wondering if anyone has any other suggestions or things to try before that.