Float column rendered as integer in Form Builder

I have a table with a column of type float. This renders correctly in the data administrator app when viewing the table, showing for example 1.5, but when I open as a form it is rendered as an integer showing 2. Also if go into the form in edit mode I can only enter an integer value.

If I check the column metadata for this column in Form Builder, it correctly shows

Column name Duration
Data type float
Is nullable NO
Default value null

Any suggestion on how I get this to render (and be editable) as a float rather than as integer.

Thank you.