All buried treasure maps lead to the same chest.
The title says it all. It is very annoying to find out that I was already there. If you read this, can I also give you a fix for the sound issues I reported before? I fixed almost all of the problems (including enemy shooting sounds not working), as well as made some improved sound effects too, but the changes aren't subtle enough to be pointless, but aren't blatant enough to be considered a drastic, unfavorable change.