Mini Front Page PRO Cache Image

Hello, I'm using the mini front page pro with the collage layout. When I publish an article with an image, everything is fine, he seeks the first image of the article as a minuature.

It turns out that in the future I need to update this article with a new intro image, but the thumbnail does not update, the old one remains. How can I solve this?

I have already disabled the module cache and deleted all thumbnails in the folder.

Thanks.

I did it, but kept the same thumbnail

Yes, I deleted all the images in the folder, and opened the site in an anonymous tab in the browser, and cleared the entire cache, but it always generates the old image that doesn't even exist anymore. What could be happening? Any other conflict plugin?

Ex: images/thumbnails/mod_minifrontpagepro/15190_148.jpg - I deleted this image, and it generates the same thumbnail, but that image no longer exists. It should generate from the current image of the article.