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Performancecrash

Resource X caused the server thread to hang

Also seen as: server thread hang resource caused hang server froze resource watchdog resource hang

What causes it

A resource blocked the main server thread long enough to hang the server — typically an infinite loop with no Wait(), or a synchronous operation that never returns.

How to fix it

Fix the blocking loop in the named resource.

  1. Identify the resource named in the hang warning.
  2. Find any while loop lacking a Wait() and add one.
  3. Look for synchronous DB or HTTP calls that can block; make them async.
  4. If it's a third-party resource, report it or replace it.

Related errors

[resourceName] script timeout / hitch warningResource X caused the server thread to hang

Related guides

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