The error is a thrown by Adobe’s underlying graphics framework (possibly the CoolType text engine, PDF Library , or GPU renderer ). When a low-level C++ function returns an unhandled exception—often memory corruption, a null pointer dereference, or a malformed drawing command—the UI layer lacks a specific error code to map it to. Thus, it defaults to the generic, infuriating message.
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💡 Always keep "Background Save" and "Automatically Save Recovery Data" turned on in Preferences > File Handling , but if the error persists, try turning them off . Sometimes the background process is what triggers the conflict! To help me narrow down a specific fix for you, let me know: Does this happen with every file or just one ? Are you using any third-party plugins ?