bug: it doesnt recognise the serverless variables whilst on serverless framework it shows as it should be

Based on the Serverless Framework docs the schema should look like this but I get errors from the source till the end.

events:
      - cloudwatchEvent:
          name: ${self:custom.transcribeJobName.${self:provider.stage}}
          event:
            source:
              - 'aws.transcribe'
            detail-type:
              - 'Transcribe Job State Change'
            detail:
              TranscriptionJobStatus:
                - COMPLETED
                - FAILED

Start by reproducing the shown Serverless Framework configuration in vscode-yaml and inspect the diagnostics reported from the source field onward. Done means the valid AWS Transcribe event schema is accepted without errors; the issue does not identify a source file or test to run.