It Spawns Me In The Middle Of Nowhere!!!

I Was Making A Long Parkour Map. I Kept Of Failing To Test Out The Jumps And Obsticles. Until The Time I Died Because I Fell Of The Map. Suddenly I Was In The Sky Falling Down And Landed In The Middle Of Nowhere, Without Any Sight Of My Buildings. I Searched About 10 Minutes Until I Gave Up. Then I Made A Big House And The Same Thing Happend To Me. This Hasent Been Happening Since The New 0.10.4 Update For Minecraft Pocket Edition. Thanks In Advance