PENDING SCCM clients being listed as not being a client in MECM 2010 Hotfix 4600089.

[SRT]

We currently have about 1700 devices that are listed in SCCM, out of those 1235 devices have a GUID assigned and a client version, but are listed as not being a client nor a site code. Opening the applet in control panel provides the same guid that is visible in SCCM, as well as in the SMSCFG.INI. If I delete the computer from SCCM, remove the certs and restart the sms agent service, the device then shows up, but then it's temporary, and then is back in the same state. When I look at the v_r_system table for my computer for example. The SMS_UUID_ChangeDate0 field is 2021-07-13 14:25:40.000.

CCMEval provides A result Code of 7.

PowerShell version: 5.1.17763.2090. Script executing with Administrator rights.
ConfigMgr Client Health 0.8.3 starting.
Script last ran: 08/19/2021 12:43:39
WMI Check: OK
Compliance States: Refreshed.
Configuration Manager Client is installed
Configuring service BITS StartupType to: Automatic (Delayed Start)...
Starting service: BITS...
Service winmgmt startup: OK
Service winmgmt running: OK
Service wuauserv startup: OK
Starting service: wuauserv...
Service lanmanserver startup: OK
Service lanmanserver running: OK
Service RpcSs startup: OK
Service RpcSs running: OK
Service W32Time startup: OK
Service W32Time running: OK
Service ccmexec startup: OK
Service ccmexec running: OK
SMSTSMgr: OK
ConfigMgr Client Site Code: OK
ConfigMgr Client Cache Size: OK
ConfigMgr Client Max Log Size: OK (4096)
ConfigMgr Client Max Log History: OK (1)
ConfigMgr Client Provisioning Mode: OK
ConfigMgr Client Certificate: OK
ConfigMgr Hardware Inventory scan: OK
Software Metering - PrepDriver: OK
DNS Check: OK
BITS: OK
ClientSettings: OK
GPO Cache: OK
StateMessage: OK
Adminshare Admin$: OK
Adminshare C$: OK
Drivers: OK
Updates: No mandatory updates to install.
Free space C: OK
Pending Reboot: OK
Clearing ConfigMgr orphaned Cache items.
Starting Built-in Configuration Manager Client Health Evaluation
Setting last ran to 09/15/2021 11:47:43
Updating local logfile with results
Updating fileshare logfile with results
Updating SQL database with results
And it states that everything is working correctly.

ClientIDManagerStartup.log
Just contains the following.
Updated registration hint.
Received shutdown request from WMI

CCMMessage contains
Raising event: instance of CCM_CcmHttp_Status { ClientID = "GUID:CorrectGUID"; DateTime = "20210915162309.533000+000"; HostName = "SCCM"; HRESULT = 0x00000000"; ProcessID = 4228; StatusCode = 0; ThreadID = 18036;
OutgoingMessage(Queue='mp_[http]mp_locationmanager', ID={}): Delivered successfully to host 'SCCM'.

Everything looks to be working,