post_max_size its already 2048 mb I also have a post on UNA that expired the token and posted the same post three times, and there was no photo, the problem is to prevent double posting if the user clicks to try again. Search UNA for "Location field not working as expected" so it has nothing to do with my php.ini or nginx conf settings. You can investigate the logs from my post in UNA if you want to find the problem and fix it. that post was posted three times due to totken expiration.

[memcached]
; Memcached extension configuration


; Specify the serializer for Memcached
memcached.serializer = php


; Specify the session prefix for Memcached
memcached.sess_prefix = memc.sess.key.


; Enable binary protocol for Memcached sessions
memcached.sess_binary = On


; Use SASL authentication for Memcached (0 = disable, 1 = enable)
memcached.use_sasl = 0


; Minimum waiting time for session lock acquisition (in milliseconds)
memcached.sess_lock_wait_min = 150


; Maximum waiting time for session lock acquisition (in milliseconds)
memcached.sess_lock_wait_max = 150


; Maximum size of POST data that PHP will accept.
post_max_size = 2048M   ; Modificat la 2GB


; Maximum allowed size for uploaded files.
upload_max_filesize = 2048M   ; Modificat la 2GB


; Maximum execution time of each script, in seconds
max_execution_time = 7200   ; Modificat la 2 ore


; Maximum amount of time each script may spend parsing request data
max_input_time = 7200   ; Modificat la 2 ore


; Maximum amount of memory a script may consume
memory_limit = 32768M   ; Modificat la 32GB


; Maximum number of files that can be uploaded via a single request
max_file_uploads = 50000


; Enable HTML error handling
html_errors = On


; String to output before an error message
error_prepend_string = "<pre style='white-space: pre-line'>"


; String to output after an error message
error_append_string = "</pre>"


[opcache]
; Enables the opcode cache for PHP
opcache.enable = 1


; Frequency of checking for updated files (0 = never)
opcache.revalidate_freq = 0


; Validates cached files with timestamp checks
opcache.validate_timestamps = 1


; Maximum number of files that can be cached in memory
opcache.max_accelerated_files = 200000   ; Modificat pentru a permite mai multe fișiere cache


; Memory consumption by the opcode cache (in MB)
opcache.memory_consumption = 256   ; Modificat la 256MB


; Maximum wasted memory percentage before restart
opcache.max_wasted_percentage = 20


; Size of the interned strings buffer (in MB)
opcache.interned_strings_buffer = 16


; Allows for faster shutting down of the opcode cache
opcache.fast_shutdown = 1