I'm attaching the PHP72x64_errors.log here, right after attempting two (.txt and a .png) file uploads. Both times I get the same error message:
TXT Upload:
[13-Mar-2019 10:33:48 America/Los_Angeles] finfo::finfo(): Failed to load magic database at '(null)'.
C:\Websites\LAT\mantis\core\file_api.php: 1004: finfo - -> - finfo( <integer>1040 )
C:\Websites\LAT\mantis\core\file_api.php: 1023: - - - - file_create_finfo()
C:\Websites\LAT\mantis\core\file_api.php: 710: - - - - file_get_mime_type( <string>'C:\\Windows\\Temp\\php376B.tmp' )
C:\Websites\LAT\mantis\core\file_api.php: 73: - - - - file_add( <integer>1, <array> { ['name'] => 'Att.txt', ['type'] => 'text/plain', ['tmp_name'] => 'C:\\Windows\\Temp\\php376B.tmp', ['error'] => 0, ['size'] => 3, ['browser_upload'] => true }, <string>'bug' )
C:\Websites\LAT\mantis\core\commands\IssueFileAddCommand.php: 154: - - - - file_attach_files( <integer>1, <array> { [0] => <array> { ['name'] => 'Att.txt', ['type'] => 'text/plain', ['tmp_name'] => 'C:\\Windows\\Temp\\php376B.tmp', ['error'] => 0, ['size'] => 3 } } )
C:\Websites\LAT\mantis\core\commands\Command.php: 137: IssueFileAddCommand - -> - process()
C:\Websites\LAT\mantis\bugnote_add.php: 58: Command - -> - execute()
PNG Upload:
[13-Mar-2019 10:34:48 America/Los_Angeles] finfo::finfo(): Failed to load magic database at '(null)'.
C:\Websites\LAT\mantis\core\file_api.php: 1004: finfo - -> - finfo( <integer>1040 )
C:\Websites\LAT\mantis\core\file_api.php: 1023: - - - - file_create_finfo()
C:\Websites\LAT\mantis\core\file_api.php: 710: - - - - file_get_mime_type( <string>'C:\\Windows\\Temp\\php21CC.tmp' )
C:\Websites\LAT\mantis\core\file_api.php: 73: - - - - file_add( <integer>1, <array> { ['name'] => 'Capture.PNG', ['type'] => 'image/png', ['tmp_name'] => 'C:\\Windows\\Temp\\php21CC.tmp', ['error'] => 0, ['size'] => 3812, ['browser_upload'] => true }, <string>'bug' )
C:\Websites\LAT\mantis\core\commands\IssueFileAddCommand.php: 154: - - - - file_attach_files( <integer>1, <array> { [0] => <array> { ['name'] => 'Capture.PNG', ['type'] => 'image/png', ['tmp_name'] => 'C:\\Windows\\Temp\\php21CC.tmp', ['error'] => 0, ['size'] => 3812 } } )
C:\Websites\LAT\mantis\core\commands\Command.php: 137: IssueFileAddCommand - -> - process()
C:\Websites\LAT\mantis\bugnote_add.php: 58: Command - -> - execute()
My config file
# --- Attachments / File Uploads ---
$g_allow_file_upload = ON;
$g_dropzone_enabled = ON;
$g_file_upload_method = DATABASE; # or DISK
$g_absolute_path_default_upload_folder = 'C:/Windows/Temp/'; # used with DISK, must contain trailing \ or /.
$g_max_file_size = 5000000; # in bytes
$g_preview_attachments_inline_max_size = 256 * 1024;
$g_allowed_files = 'TXT,txt,jpg,jpeg,png,bmp,log,as,html'; # extensions comma separated, e.g. 'php,html,java,exe,pl'
$g_disallowed_files = 'exe'; # extensions comma separated
EDIT
Forgot attachments.