Thank you for getting in touch. The reason why you do not see the request raw data included in crash reports is due to the request streams being unseekable. To include the raw data in your reports, you can set the ReplaceUnseekableRequestStreams setting to true in your appsettings.json. This will attempt to replace any unseekable streams with a seekable copy on the request object so that Raygun can later read the raw request payload.
You can review other additional settings from the readme file located in our public repository here
We will look to review our documentation and ensure we include this information to avoid further confusion in the future.
Let me know if you have any more questions.