That's weird, never noticed that (upper field first should be correct)
Going to repeat to see if the output file from Movie Studio is still reversed. By all accounts the footage should be worse than the OP's.
Standard DVD PAL widescreen render template is lower field first (weird), source footage and DVD PAL render template should be upper. I normally use Magix Edit Pro for editing.
Outputting as Upper and Progressive for comparison, included outdoor daylight and night clips this time.