Instrument name disappears if I start it with a grace note

[Omid Mo'menzadeh]

Hello all.
I think I just described the problem in the title, but it only happens if I
have a multi-voice staff, as the following example demonstrates:

%%%
\version "2.22.1"
\score {
  \new Staff <<
    \set Staff.instrumentName = \markup \bold "Name"
    \context Voice = "voice" \relative c'' { \appoggiatura b16 c1 }
  >>
}
%%%

The name appears if one removes the beginning appoggiatura. It works with
grace, slashedGrace, and acciaccatura too.
Thanks in advance,
Omid Momenzadeh