Problem description
The value specified for the SignatureVersion request parameter in the RTMP request is invalid.
Causes
You initiated an RTMP signature request, but the value specified for the SignatureVersion request parameter is invalid.
Examples
You set the SignatureVersion request parameter to OSS4-HMAC-SHA256, but OSS4-HMAC-SHA256 is not supported.
Solutions
Use the default signature version. For more information, see RTMP ingest URLs and signatures and Add signatures to URLs.