Issue to get Barcode Widget to work

Hi there,

I'm trying to show a Barcode on my Form by making use

of the Barcode Widget. However my Barcode show only a grey line. No

Barcode or sample data of 1234567890 as mention. I also can't stretch or

make the barcode higher. See below. What am I missing? Ignore the

Barcode Image field. That is just an image that I used to import a

barcode image in the meantime. At the end I want the Barcode that was

generated by an expression and saved in the Barcode String field to be dispalyed on the form and saved.

See atatched file

Any help will be much appreciated.

Thank you,

Andre.