Misplaced position of notes.

Greetings,

In the code below, the note following the staff change from "down" to "up"
should be F#4. Instead, the result is a D#6. This seems like a clef
transposition away?

\version "2.26.0"

    \score {
      \new PianoStaff <<
\set PianoStaff.connectArpeggios = ##t
\new Staff = up {
 \relative c' {
   \key e \major \time 6/8 \clef treble
   <<
     {
e'2. %71A
     }
     \\
     {
s2. %71B
     }
   >>
 }
}
\new Staff = down {
 \relative c' {
   \key e \major \time 6/8 \clef bass
   \voiceOne e,,16 fis gis b e fis gis b e \change Staff = up \voiceTwo fis
gis b %71
 }
}
      >>
      \midi{}\layout {
      }
    }
Any help/explanation would be greatly appreciated.

Hwaen Ch'uqi