3.1.6 Alternates/Lucky Losers replacements
- Lucky loser and alternates replacements only happen in first rounds (Main Draw or Qualifying). There’s an exception to this rule (Rule 3.1.7).
- For the purpose of alternates/lucky loser replacements, a player who forgets to send their picks on the first day of competition (qualifying or main draw) will be considered a missing player.
- For the purpose of alternates/lucky loser replacements, a team will be considered missing in doubles if one of its players forgets to send their picks on the first day of competition (qualifying or main draw).
3.1.8 Placing Alternates/Lucky Losers in the draw
- For the purpose of Alternates/Lucky Losers placement, every missing player will be treated as a bye.
I read this as it being a BYE with only one player sending.
I also assumed one player not sending was a bye, which would mean changing the draw.
Anyway, seems like no clear decision on eather issue yet