Hi,
Did you initiate a fresh scan after enabling the plugin?
Are you using W3 Total Cache plugin or any optimizer plugins like Siteground and Rocket?
Have you tried to use the “Facebook for commerce” script instead of WP plugin?
Can you please create a support if the issue persist as we may need to look into it furthermore?
https://support.cookiebot.com/hc/en-us/requests/new
Best wishes,
Cookiebot support