OSX Cloud Encoder and Hybrid Encoder Log (Legacy 32-bit software)

To create and access the Encoder log on OSX Software Encoder, do the following:

You can navigate in the Terminal to
/Applications/Encoder.app/Contents/MacOS

And then run this command to output the file somewhere such as /tmp/
Encoder | tee /tmp/Encoder.log

Or do it all at once:
/Applications/Encoder.app/Contents/MacOS/Encoder | tee /tmp/Encoder.log

Adjust "Encoder.app" to match the app name of the application, which may be renamed by the user, or by future versions.

~/Library/Logs/DiagnosticReports/* has crash reports too