Upload field in a form will not accept attachment

CE Version 4.3.7
Joomla Version 4.2.3

The problem: When I try to attach a file to a contact form message the form displays the error:
Error: The uploaded file exceeds the upload_max_filesize directive in php.ini

I have checked that Joomla sees the correct value which is 64M see attached screenshot.
The form limit is set to 8M see screenshot
The form attempts the upload and generates the error message See attached screenshot.

I have further insight into this problem. The text on the page says the field limit is 8MB But when I inspect the source code in firefox the input tag shows 2MB. I don't know where this number comes from.

See below. The Max upload is set to 64MB in PHP, 8MB in the Contact enhanced field, but displays as 2MB in the <input> this is not set anywhere.

<span class="visually-hidden"><input type="file" name="upload_files[]" id="upload_files" accept="image/jpeg,image/pjpeg,image/jpeg,image/pjpeg,image/gif,image/png,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,application/mspowerpoint,application/powerpoint,application/vnd.ms-powerpoint,application/x-mspowerpoint,application/vnd.openxmlformats-officedocument.presentationml.presentation,application/excel,application/vnd.ms-excel,application/x-excel,application/x-msexcel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/pdf,application/x-compressed,application/x-zip-compressed,application/zip,multipart/x-zip" class="form-control ajaxfileupload" multiple="" data-max="3" data-files-max="3" data-file-validator="#upload_files_validator" data-file-alias="#upload_files" data-autoupload="true" data-url="/contact-us.html?task=formfield.ajax&id=5&random=1462050382" data-max-chunk-size="7000000" data-files-container="#ce-ff-container-upload_files .ff_fileupload_uploads" data-files-left-container="#upload_files_files_left" data-accept-file-types="/(\.|\/)(jpg|jpeg|gif|png|doc|docx|ppt|pptx|xls|xlsx|pdf|zip)$/i" data-max-file-size="8388608" data-max-number-of-files="3" data-limit-multi-file-uploads="3">
<input type="hidden" name="MAX_FILE_SIZE" value="2.00 MB">
<div>
Maximum upload size: <strong>2.00 MB</strong> </div>
</span>

No help with this problem for two days. The upload size is fixed at 2MB no matter what value I set. The display text changes but the input field stats the same when I inspect the source.. This feature is needed so the client can upload quality photographs.

Dear jestick,

Thank you for the information provided. We don't usually work during the weekend. We're currently investigating this problem and I'll get back to you as soon as possible.

Best regards,

OK I understand it is Monday here but of course you are in Brazil. I will wait for your response.

Dear jestick,

Thank you for understanding.

I couldn't reproduce this error locally. However, I have just checked and Contact Enhanced used the Joomla framework to get the Maximum Upload size for your server. It gets the information from the following directives:
ini_get('post_max_size')
ini_get('upload_max_filesize')

Also, when uploading the server is returning with the error UPLOAD_ERR_INI_SIZE, which is triggered before MAX_FILE_SIZE.
www.php.net/manual/en/features.file-upload.errors.php

Do you have any user .ini file that might be overriding the global setting?

It seems the PHP core function ini_get('upload_max_filesize') or ini_get('post_max_size') is returning 2 MB. If you'd like I can further investigate this for you. You can send FTP credentials to me using the Support > Contact form or just reply to this forum notification EMAIL. For safety reasons, do not post any sensitive information on the forum.

Best regards

No once you verified it is not a problem with the component I will take it from here. I must have missed something when checking the chain of configuration. I should be able to fix it. Thank you for your help.

I'm not sure I understood what you meant. I did investigate if it was an issue with the component, but I couldn't reproduce the same problem locally.

The only problem I found was that the Maximum upload size label is getting the data only from Multiple Files Form Field parameters and not from the ini_get('upload_max_filesize') or ini_get('post_max_size'). I've already fixed it and it will be available in the next release. I'll send the fix to your email as well in a few minutes.

Let me know if you need any further assistance.

This worked OK the file size displayed matches the file size used in the code. The problem with setting the file size was solved by creating a directive in a local php.ini. Everything works now, thank you for your help.