I can reproduce your issue. The User Attributes in the writer are set to Automatic. This sets the attribute type to double, while the value is a string.
I think this is incorrect behavior. @danatsafe can you check this?
When you change the user attributes to Manual and change the type to char it will write the data as expected.
I also had issues with your writer, it kept complaining about a template? After replacing it with a new (Feature)writer it worked.
Thank you for the help. It works fine as I choose the definition to be “manual” and then the type to be “chr”
I think this needs to be enhanced so that one can still choose the definition to be “Automatic”