Slider images different size & grey thumbnails

I recently changed my featured images to be larger on the home screen which I think I have managed. However in doing so (using the regenerate thumbnails plugin and the colorlib plugin 25 zip) it has changed my slider images to be different sizes.

Also it has made my recent post thumbnail images to be half grey. I tried the CSS code you advised for a similar problem on another thread, however it just caused the thumbnails to stretch and look distorted. It was the following:

.widget .recent-posts-wrapper .post .post-image img {
height: 100%;
}

My website is www.alpacamybackpack.com

Thanks

Leanne

Hi @Leanne,

I hope you are well today and thank you for your question.

Please make sure you have set Thumbnail size in the Media settings as shown in the attached screenshot.

Best Regards,
Movin

So that has fixed the size of the thumbnails, but the first image on my slider is still smaller than all the rest. It has made it smaller and pixelated. All the other images on the slider are fine except the first one.

I want the first image on the slider to be the same size as all the others.

I want the first image on the slider to be the same size as all the others.

I visited your shared site to troubleshoot it but i saw different theme on your site and not Activello theme.

Please advise.