Bedrock Knowledge Base Sync failure

Getting the error "Data sync failed due to Knowledge base role <role arn> is not able to call specified embedding model <titan arn> Could not resolve the foundation model from the provided model identifier. (Service: BedrockRuntime, Status Code: 404, Request ID: fd1bfa3c-93a5-4051-9dcc-cbe08d1af740)","code":"ValidationException","time":"2023-12-14T14:23:48.324Z","requestId":"09634f76-e860-4811-b08e-8a6e998ff7d5","statusCode":400,"retryable":false,"retryDelay":46.896332332729315} Checked that the role policies are setup as per suggestions. What could be done to resolve? Please assist so we can proceed with next steps