$ngfBlobUrl missing in two input form

[PieroProcessing]

Hi, there is something I can't understand.
i have a form with two input like this
form
input ngf-select= upload($file, 'option1')/>
input ngf-select= upload($file, 'option2')/>
form>

I use console log to analyze $file. the thing is that in the first input I find the blob url data. while missing in the second. Do you have nay idea why is so?
thanks