map sound fails after loading game

[springraaar]

game : metal factions v2.58
map : scorched crossing v2.5
engine : 2025.06.20

to reproduce, start a battle on the map, then do /quitmenu > quit to menu > load game and load the xpto.ssf (in attachment)

you'll get lua errors related to map-specific sounds that you didn't get when starting a new battle on the map

[t=00:01:28.223951][f=0003600] [Sound] Error: [LoadSoundBuffer] unable to open audio file "lavaambient1"
[t=00:01:28.223996][f=0003600] [Sound] Error: [Sound::GetSoundId] could not find sound "lavaambient1"
[t=00:01:28.224012][f=0003600] [Sound] Error: [Sound::GetSoundId] could not find sound "lavaambient1"
[t=00:01:28.224025][f=0003600] [Sound] Error: [Sound::GetSoundId] could not find sound "lavaambient1"

the sounds are played through a map gadget that loads them from sounds/map_lava.lua on gadget:Initialize().

[springraaar]

ssf save file:
xpto.txt

You can generate a new save by doing /quitmenu > save

[springraaar]

example infolog:

infolog_load_map_sound_bug_2025.06.20.txt