Is there a way to use it with WebP Express + Cloudflare?

Hi,
im using this plugin (premium) since a few moths ago, and it pretty happy.
Now i want to add a WebP images cache, but im experiencing some issues.

I have Fastest Cache running with cloudflare pretty well, but now, i just instaled a plugin witch convert images to webp and show it (if the client browser support that).

What its happening to me, is when all the cache is rebuilt after a few hours, the images cant be shown in safari (a browser that dont support webp) and the jpg file it is now showing.

what i suppose it is happening is that Fastest cache dont create all the caches for all the images.

it is this true? could you help me?

thx,

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