
Custom Image Size Not Working on Preview/Live Website
this happened a lot before I knew what I was doing. So here are the main solutions I’ve used that works for the most part.
- Purge Cache
- Regenerate CSS
- Theme related issues
- Switch CSS Print Method
- Multiple Page Builder
- Classic Editor and Elementor
- SVG Images (require set pixel size)
- HTML tags are not closed
- Mixed Content/Incorrect URL

Purge Cache
Siteground had an excellent plugin called SG Optimizer which usually fixes the issue!
Mixed Content/Incorrect URL

WordPress > Dashboard > Settings > General

Then make sure it’s the same HTTP:// or HTTPS://
Obviously you’ll want https:// and SiteGround gives you a FREE SSL certificate so you can do that pretty easily.