Music in game is desynced

[Ratiosu]

Sometime yesterday, I noticed that the music in the game is not synchronized correctly. For example, the music that plays when a battle starts is five to ten seconds later than it normally would be. Another example is that if I use the boat to go from say Vermilion City to Canalave City, Canalave City's music will not start for roughly about the same time. Has anyone else experienced this issue before? Is there a way to fix something like this?