The "SIG: Thread terminated due to fatal error" in RPCS3 might be intimidating, but it is not a dead end. By systematically working through the steps—from verifying your game dump and resetting configurations to analyzing the log file and seeking community help—you can almost always find the root cause.
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Low system memory, especially on systems with integrated graphics, can cause threads to terminate during heavy loads. The "SIG: Thread terminated due to fatal error"
Open the RPCS3.log text file in your main RPCS3 folder. Scroll to the very bottom. If you see lines like Failed to load /dev_bdvd/... , your game dump is corrupted. especially on systems with integrated graphics