FileUpload max size validation isnt working

FileUpload::make('server')
    ->maxSize(102400)
    ->disk('<...>')
    ->visibility('private'),

FileUpload::make('server')
    ->maxSize(102400)
    ->disk('<...>')
    ->visibility('private'),

if I upload a file of size > 12MB, it gets rejected for being too large. However,

post_max_size

post_max_size

memory_limit

memory_limit

max_upload_size

max_upload_size

upload_max_filesize

upload_max_filesize

in the ini file are all over 128MB, and the validation, still considers 12MB as the limit. Am I missing something?