Assets automaticly deleted

This happended after i did some changes on the image compression in the template used by blog posts. Also i did change the last name of the user who created the blog post and her old name is still showing as the author. I dont know if this got anything to do with the assets being deleted tho.

I have now tried to create a new blog post with different images to see if they get deleted as well.

Yes, I did change the last name of the blog author. Could that be the reason assets were deleted automatically?

Perch: 2.8.13, PHP: 5.5.29-1~dotdeb+7.1, MySQL: 5.5.44, with PDO
Server OS: Linux, cgi-fcgi
Installed apps: content (2.8.13), assets (2.8.13), categories (2.8.13), perch_blog (4.6), perch_forms (1.8.3), perch_backup (1.2)
App runtimes: <?php $apps_list = array( 'content', 'categories', 'perch_blog', 'perch_forms', );
PERCH_LOGINPATH: /perch
PERCH_PATH: /home/4/h/hairport/www/perch
PERCH_CORE: /home/4/h/hairport/www/perch/core
PERCH_RESFILEPATH: /home/4/h/hairport/www/perch/resources
Image manipulation: GD Imagick
PHP limits: Max upload 128M, Max POST 128M, Memory: 129M, Total max file upload: 128M
Resource folder writeable: Yes
DOCUMENT_ROOT: /home/4/h/hairport/www
HTTP_HOST: www.hairport.no
REQUEST_URI: /perch/core/settings/diagnostics/
SCRIPT_NAME: /perch/core/settings/diagnostics/index.php

Directly in Assets. Drag and drop.

<perch:block type="image" label="Bilde">
    <perch:blog id="images" type="image" width="1200" quality="90" label="Bilde" output="tag"/>
    <p class="bildetekst"><perch:blog id="bildetekst" type="textarea" label="Bildetekst" size="xs"/></p>
</perch:block>

This site is a fresh install.

Yes, that is a different project/site.