If the user then creates a new save file, the game’s internal checksum routine may append the modified ROM’s CRC to the save metadata. Some emulators (especially Android-based ones like DraStic) misread this appended value as a save game signature, leading to the error:
Do you have your own experience with error code 8a42d36e? Share your story in the comments below. For more deep dives into Pokémon ROM signatures, checksums, and preservation, subscribe to our newsletter. pokemon black 2 - 8a42d36e