Image error

Hello! I have a problem to import images as it only matters the cover image of the posts , the internal images are not displayed.
I’m using importing images in the model below:

<img>https://www.imgurl.com.br/images/test/282/27e801614a60ac418740ad9038ad5a93.jpg,https://www.imgurl.com.br/images/test/282/28e801614a60ac418740ad9038ad5a93.jpg</img&gt;

They are separated by a comma and the test they appear .
Can you help me?

https://www.ads-software.com/plugins/wp-all-import/