How to Fix “unexpected color primaries value” in Unreal 5.4

If you’re using the Electra player within Unreal Engine, I assume you’re already transcoding your videos using ffmpeg… because if you’re not, then you’re not getting very far at all as the Electra player supports a disappointing number of formats. Unfortunately, Unreal 5.4 crashes on videos that 5.3 played without issues…. and it unsurprisingly was driving me NUTS….

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