Parallel Universe Bug

Definitions

1. A bug so strange or environment-specific that it seems to belong to a different reality. In engineering slang, the phrase is for failures that defy normal expectations until some hidden condition finally explains the alternate universe.

   In plain English: A bizarre bug that seems impossible until some hidden condition reveals why reality differed.

   Example: "The mobile auth issue felt like a parallel universe bug until they discovered one regional carrier proxy was rewriting a header nobody had realized the flow depended on."

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