tekgik

It worked for me too. Thanks fryewiles

This worked for me

After a bit of troubleshooting, adding this to the .htaccess file in my WP root worked:

<IfModule mod_security.c>
<Files async-upload.php>
SecFilterEngine Off
SecFilterScanPOST Off
</Files>
</IfModule>

Turns mod_sec off on the async-upload.php file.

Thanks LSRn94