Images is writing size as 1px by 1px after converting the site to ssl/https

after installing ssl certificate on the webserver, and converting the URL to HTTPS, the images have been writing size as 1px by 1px.

1. Before i put the https instead of http in wp-settings, the images where visible, but the browser show message for insecure images

2. After the new URL – the images in media library and on the website is invisible, and the source code show the size as 1 px x 1 px