Thanks for sharing @kinjalgranicus. It looks like the thread is being killed:
2025-07-23 21:04:51.579 +00:00][126][Error] - {BackendCommComponentBase (CentralConfigurationFetcher)} WorkLoop Current thread: `ElasticApmCentralConfigurationFetcher' (managed ID: 126) +-> Exception: System.Threading.ThreadAbortException: Thread was being aborted.
at System.Threading.Monitor.ObjWait(Boolean exitContext, Int32 millisecondsTimeout, Object obj)
at System.Threading.ManualResetEventSlim.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.SpinThenBlockingWait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.InternalWait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at Elastic.Apm.BackendComm.CentralConfig.CentralConfigurationFetcher.WorkLoopIteration()
at Elastic.Apm.BackendComm.BackendCommComponentBase.WorkLoop()
This may be a long shot as I'm not a .NET developer, but I did come across this solution where they had thread issues relating to shared DLLs. Can you see if amending your configuration works? If not I think it will need to fed back onto the GitHub issue.