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In rare cases, the generation of a rendition might fail. In the old transcode system, an asset streamer URL would not be returned in this case. In the new transcode system, an asset streamer URL is returned in this case, but the actual asset streamer request returns a an HTTP 500 error. A fallback image is never returned by the asset streamer when the generation of the requested generation has failed. Please consider showing a fallback image to end users if a an HTTP 500 error is returned.
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