Quality Evaluation Score Discrepancy in EU-West BYOC WFM

What is the reason this setting causes immediate failures when invoking custom data actions from Architect?
The integration returns a 504 Gateway Timeout after exactly thirty seconds, halting the customer journey. We are operating in an EU-West BYOC environment. The business requirement dictates that quality scores must align with the Performance Dashboard metrics for compliance reporting. However, the calculated quality score in the Performance Dashboard diverges from the raw evaluation data exported via the WFM API. This discrepancy affects our ability to generate accurate agent performance reports. Please advise on the root cause.