So, I joined the game today after patching the game to 13.0.5 and finished Kakori help plaza quest for the bulbasaur egg.
I wanted a female so after running around with the egg, countless retries, i got a female finally, saved and went ahead to the next Help Plaza quest , "Building Bridges" upon speaking to the pokemon and fighting the Timburrs, the battle animation happens but then its just a black screen.
I reverted to many saves back hoping i wont have to lose my Bulbasaur girl but none of them worked, only the first save of the day seems to be working fine so unfortunately i reverted back and am playing there now.
I will wait a couple of days just in case this save (1644) is fixed so i can continue from here, but id like to find out myself as well what went wrong here.
The only steps i did all day through the corrupted saves:
Pick up the Bulbasaur Kakori Help Plaza,
go to its location,
find the invisible agent enough times so they fight me and give the Bulbs back,
return to receive the egg,
save before picking it up so i can hatch a female,
save once female was obtained,
proceed to Building Bridges.
That's all the progress lost, if i can , id like to not have to farm for a female again...
Attaching my reverted one as well where the battle starts just fine with no issues.
Game - 1644 - Nyxta - 152h 57m - 5 badges.rxdata
CurrentSaveWhereItWorksFine.rxdata