multiple FileUpload in my form blocks

Hi everyone,
in one of my forms, I'm using Forms\Components\FileUpload in my Image block.
I noticed that if I use 2 blocks of the same type (Image block), when I want to load 2 different images, only the last one I inserted is saved, in both blocks....

any suggestions on how to save the 2 different images?
Where am I doing wrong?

Thanks in advance