overriting issue with custom file variable name

[div wfd-id="60"]Dear support [div wfd-id="60"]I have following problem by using a a custom file save with a variable.
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is set in a custom PHP field before the upload.{var:codenr}
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I can call {var:codenr} and there is the right text in. Suddently the file will be saved as
{date}_{var:logoup.file.name}. {var:logoup.file.extension}
without {var:codenr}.

[div wfd-id="67"]I digged a bit deeper in there is an issue with the

$function['filename_provider']

it is every time NULL. On \wp-content\plugins\chronoforms\admin\chronoforms\functions\upload\upload_output.php Line 30

if(!empty($function['filename_provider'])){

 $this->set($function['name'].'.file.fullname', \G3\L\Upload::get($name, 'name'));
 $this->set($function['name'].'.file.name', $fname);
 $this->set($function['name'].'.file.extension', $ext);
 
 $vfilename =$fname. $this->Parser->parse($function['filename_provider']) . '.' . $ext ;

 }

did you disable the upload files in the form settings ?
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I tested this here and the file was named correctly!

[div wfd-id="67"]Suddently not.
​[div wfd-id="67"]

if you do not disable it then the files will be uploaded there as well, so disable that to be able to use your custom upload action settings!