Certificate pinning validation failing during high-throughput JMeter runs

Hey everyone, I’ve run into a really strange issue with certificate pinning validation when pushing 200 threads through JMeter 5.6.2. The security module rejects valid tokens after 10 seconds of load.

“Error 495: Security handshake failed. Pin verification mismatch.”

This happens on POST /api/v2/analytics/reporting/query. Low concurrency works fine. Is this a rate limit side effect or a genuine SSL pinning issue in the platform_api gateway?