Bulk add/edit post doesn't save featured image to child sites

Hello All,

when add new bulk post the featured image doesn’t save to child sites
system status is:


### Server Info                    Required                                               Detected                                     Status   ###

MainWP Dashboard                   
MainWP Dashboard Version           4.1.6                                                  4.1.6                                        Pass        
MainWP Upload Directory            Writable                                               Writable                                     Pass        
MainWP Extensions                  
Advanced Uptime Monitor Extension  5.1.1                                                  API License Active                           Pass        
Boilerplate Extension              4.0.2.1                                                API License Active                           Pass        
MainWP Bulk Settings Manager Extension4.0.2.1                                                API License Active                           Pass        
MainWP Code Snippets Extension     4.0.1                                                  API License Active                           Pass        
MainWP Custom Dashboard Extension  4.0.2                                                  API License Active                           Pass        
MainWP Google Analytics Extension  4.0.3.1                                                API License Active                           Pass        
MainWP Maintenance Extension       4.0.2.1                                                API License Active                           Pass        
MainWP Post Dripper Extension      4.0.3                                                  API License Active                           Pass        
MainWP Post Plus Extension         4.0.2.1                                                API License Active                           Pass        
MainWP Pro Reports Extension       4.0.5                                                  API License Active                           Pass        
MainWP Rocket Extension            4.0.1.1                                                API License Active                           Pass        
MainWP Wordfence Extension         4.0.3                                                  API License Active                           Pass        
WordPress                          
WordPress Version                  >=3.6                                                  5.7.2                                        Pass        
WordPress Memory Limit             >=64M                                                  256M                                         Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
FileSystem Method                  = direct                                               direct                                       Pass        
PHP                                
PHP Version                        >=5.6                                                  7.3.28                                       Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Max Execution Time             >=30 seconds                                           300                                          Pass        
PHP Max Input Time                 >=30 seconds                                           120                                          Pass        
PHP Memory Limit                   >=128M                                                 256M                                         Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Upload Max Filesize            >=2M                                                   100M                                         Pass        
PHP Post Max Size                  >=2M                                                   100M                                         Pass        
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        
cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          300                                          Pass        
cURL Version                       >=7.18.1                                               7.76.1                                       Pass        
cURL SSL Version                   >=OpenSSL/0.9.8l                                       OpenSSL/1.1.1k                               Pass        
PHP Allow URL fopen                YES                                                    
PHP Exif Support                   YES ( V7.3.)                                           
PHP IPTC Support                   YES                                                    
PHP XML Support                    YES                                                    
PHP Disabled Functions             exec, passthru, shell_exec, system,                    
PHP Loaded Extensions              Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, calendar, cgi-fcgi, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imagick, imap, json, libxml, mbstring, memcache, memcached, mysqli, mysqlnd, openssl, pcntl, pcre, pdo_mysql, pdo_sqlite, posix, redis, session, soap, sockets, sqlite3, standard, tidy, tokenizer, wddx, xml, xmlreader, xmlwriter, xsl, zip, zlib
MySQL                              
MySQL Version                      >=5.0                                                  10.2.38-MariaDB                              Pass        
MySQL Mode                         NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
MySQL Client Encoding              utf8                                                   
Server Info                        
Server Software                    Apache                                                 
Operating System                   Linux                                                  
Architecture                       64		 bit                                               
Server Protocol                    HTTP/1.1                                               
HTTPS                              ON                                                     
Server self connect                Not expected HTTP response body:                       
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Gateway Interface                  CGI/1.1                                                
Memory Usage                       50.35 MB                                               
Request Time                       1622587333                                             
Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content             N/A                                                    
MainWP Settings                    
Number Of Child Sites              414                                                    
Use WP-Cron                        Yes                                                    
Optimize for Shared Hosting or Big NetworksYes                                                    
Automatic Daily Update             Install trusted updates                                
Abandoned Plugins/Themes Tolerance 365                                                    
Maximum number of posts to return  10                                                     
Maximum number of pages to return  50                                                     
Primary Backup System              Default MainWP Backups                                 
Maximum simultaneous requests      4                                                      
Minimum delay between requests     200                                                    
Maximum simultaneous requests per ip1                                                      
Minimum delay between requests to the same ip1000                                                   
Maximum simultaneous sync requests                                                        
Minimum simultaneous install/update requests                                                       
Active Plugins                     
Akismet Anti-Spam                  4.1.9                                                  Inactive                                     
Classic Editor                     1.6                                                    Active                                       
Contact Form 7                     5.4.1                                                  Active                                       
ContentStudio                      1.1.0                                                  Active                                       
Dashcore Common                    1.0                                                    Inactive                                     
Distributor                        1.6.4-dev                                              Active                                       
Google Apps Login Premium          3.4.1                                                  Inactive                                     
Gravity Forms                      2.5.4                                                  Active                                       
Gravity Forms Webhooks Add-On      1.5                                                    Active                                       
Hello Dolly                        1.7.2                                                  Inactive                                     
MainWP Dashboard                   4.1.6                                                  Active                                       
MainWP Key Maker                   1.2                                                    Active                                       
Mega Main Menu                     2.1.7                                                  Inactive                                     
One Click Demo Import              3.0.2                                                  Inactive                                     
Visual Composer                    36.0                                                   Inactive                                     
Widget Importer & Exporter         1.6                                                    Inactive                                     
WP Custom Register Login           2.0.0                                                  Inactive                                     

````Preformatted text`

Hi @hazem,

it could be that some security rule is blocking requests from your child sites and prevents them to download the image file.

Can you try to temporarily disable all security plugins and find which one is causing this?