I recently switched to Cloudflare. I noticed that some product images (thumbnails) are no longer displayed after a while. After clearing the cache, they are there again.
I have disabled Rocket loader and Mirage is also disabled (as described in support).
What could be the reason for this? I use an image optimization program (Imagify). I first thought it was webp images. But also deactivating this function it did not bring any improvement.