Issue with WP Rocket cache

Hi,
Seems like all images are doubled when using WP Rocket cache plugin.
https://www.screencast.com/t/vBF9iPm3A

When I disable WP Rocket, it show only one image, as supposed:
https://www.screencast.com/t/5Qm5VpPq8

WP Rocket Version 2.9.9

Not sure if this helps, in Chrome console it says
“Modernizr 1.6ish: miniModernizr for hugeitmicro detected. This version is known to cause issues with async JavaScript loaders. Please upgrade to at least 2.6: http://modernizr.com/”

Any idea what’s happening?

Best regards