ASM Web Scraping: The system detected non-human client-side activity

In Big-IP ASM 11.6.1, Anomaly Detection => Web Scraping is active. Any Bot Detection and Session Opening anomalies are blocked. I get a lot of blocked requests that seem to be false positive. The message is always the same: the system detected non-human client-side activity. There is no detail. The request header seems fine. What should I do to analyze this error? Is there something wrong with the web scraping configuration? Is there something wrong with the ASM itself?

Below is screenshots of the web scraping configuration.