Images do not always load

Hi,

I just started using your plugin and it’s great.
I just have some issues. I use WP Rocket and CloudFlare (free) and I managed to set up WebP Express with the following settings:
– Operation mode: CDN friendly
– Create webp files upon request? Yes
– Alter HTML: Replace tags with <picture> tags, adding the webp to srcset. + Dynamically load picturefill.js on older browsers.
– Where to replace: The complete page (using output buffering)

PageSpeed Insights no longer reports that I need to use next gen image format and opening image in a new tab clearly states that it’s a .webp format.

It’s just that 50% of the time I need to reload the page a couple of times before the image itself gets loaded. First I thought it’s a conversion issue and when all the images get converted, it’ll be fine but that’s not the case. Even images that were previously loaded do not get loaded when I visit the same post again.

Is there a workaround?

Thank you