Does anyone use Windows server 2022 as a monitoring server for SQL Sentry without any problems?

Hey, this looks to be related to the following Microsoft bug:
https://github.com/dotnet/runtime/issues/62383 

Until Microsoft resolves this issue, you can filter this alert from spamming you by applying the below Condition Settings filter to the "Event History Monitor: Error" condition:

Message Text | Does not Contain | %UnsafeNativeMethods%

That bug is closed, tested myself in Windows server 2022 with the example given in the bug report in windows 11.

System.Diagnostics.Eventing.Reader.EventLogRecord throws an InvalidOperationException on Windows 11 · Issue #60740 · dotnet/runtime · GitHub

Can you confirm that your test was done on the Monitoring Service host and remotely connecting to one of the targets effected by this error? Are the Monitoring Service hosts and effected targets on the latest update of Windows Server 2022?

yes.

Hereby the PowerShell test on the monitoring host

Note that PowerShell Get-WinEvent is also affected by this because it uses System.Diagnostics.Eventing.Reader.EventLogRecord:

PS C:\Windows\system32> Get-WinEvent -ComputerName sqlsvc01 -ProviderName Microsoft-Windows-Security-Auditing

ProviderName: Microsoft-Windows-Security-Auditing

TimeCreated Id LevelDisplayName Message
----------- -- ---------------- -------
14/06/2022 16:02:21 4634 Information An account was logged off....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4634 Information An account was logged off....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4634 Information An account was logged off....
14/06/2022 16:02:09 4624 Information An account was successfully logged on....
14/06/2022 16:02:09 4648 Information A logon was attempted using explicit credentials....

See  System.Diagnostics.Eventing.Reader.EventLogRecord throws an InvalidOperationException on Windows 11 · Issue #60740 · dotnet/runtime (github.com)

yes.

Hereby the PowerShell test on the monitoring host

Note that PowerShell Get-WinEvent is also affected by this because it uses System.Diagnostics.Eventing.Reader.EventLogRecord:

PS C:\Windows\system32> Get-WinEvent -ComputerName sqlsvc01 -ProviderName Microsoft-Windows-Security-Auditing

ProviderName: Microsoft-Windows-Security-Auditing

TimeCreated Id LevelDisplayName Message
----------- -- ---------------- -------
14/06/2022 16:02:21 4634 Information An account was logged off....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4634 Information An account was logged off....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4624 Information An account was successfully logged on....
14/06/2022 16:02:10 4672 Information Special privileges assigned to new logon....
14/06/2022 16:02:10 4634 Information An account was logged off....
14/06/2022 16:02:09 4624 Information An account was successfully logged on....
14/06/2022 16:02:09 4648 Information A logon was attempted using explicit credentials....

See  System.Diagnostics.Eventing.Reader.EventLogRecord throws an InvalidOperationException on Windows 11 · Issue #60740 · dotnet/runtime (github.com)