If I upload images of a specific width (for example 800px) and also fill in the field for the width of the images in the plugin settings, an error occurs and the images are not displayed:
Log error:
[Thu Feb 18 12:55:45.152211 2021] [proxy_fcgi:error] [pid 31008:tid 140066911143680] [client MYIP:44310] AH01071: Got error ‘PHP message: WPSP_Resize.process() error: Unable to resize image because image_resize_dimensions() failedPHP message: WPSP_Resize.process() error: Unable to resize image because image_resize_dimensions() failed’, referer: https://wordpress———-.cloudwaysapps.com/?preview_id=12&preview_nonce=0df97487e2&preview=true
Can you give us more details? Example: WordPress version, WP Show Posts version.
Also, can you try disabling all plugins except WPSP and changing the theme to a WordPress default like Twenty twenty? To check if the issue comes from a plugin conflict or a theme conflict.