There are a multiple reasons why images don't display properly on your site.
To troubleshoot image issues in WordPress yourself, use the table below to find the scenario that's applicable and follow those instructions.
|To do it yourself, see these steps||Difficulty|
|Fix image thumbnails not displaying||Basic|
|Fix duplicate featured images in WordPress||Basic|
|Fix an image that links to itself in WordPress||Basic|
|Fix mixed content errors in WordPress||Advanced|
|Troubleshoot and fix missing WordPress images||Medium|
|Change image dimensions in WordPress||Basic|