Crash during deployment of custom server

Server process exited without calling ProcessEnding(), exitCode(-1073741515), launchPath(C:\game\MyCustomGameLiftServer.exe), arguments(null), instanceId(i-07186f305da065d2f), publicIP(54.167.200.90), gameSessionId(none), occurrences(296 for this instance in a 5 minute period)

how to debug where to look for the error? everything is ok in the local run using windows 11 and gamelift local.

the thing is, i cant use get-instance to login to the instance as

  1. I dont know where I can find the instance ID as all instance just died after the error
  2. the crash happened during deployment.

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Are you sure that the instances are dying? The server processes may be crashing but that doesn’t necessarily mean that there aren’t any active instances in your fleet.