Pre-Slippi Online netplay data missing.

[ConallWilliamson]

Hi there, apologies if this is a stupid question

When I parse games from the older versions of netplay, the netplay info including names is missing.
Output is as follows:

C:/Users/Conall/Documents/Slippi/Game_20200610T230844.slp (Player( characters={18:MARTH: 5839}, netplay=None), Player( characters={2:CAPTAIN_FALCON: 5839}, netplay=None), None, None)

However, when I look at the file in the Slippi Launcher, the netplay name is available. Checking the Slippi docs, it appears that this should be populated in the Slippi file itself.