Minecraft with TNT activates its TNT self

When I put Minecraft with TNT and rejoin world (leave and join again), it activates self without any redstone/flint and steel or etc. I didn't use any tools for exploding it!

• If it activated self it takes some time for exploding, not like normal TNT or exploding by tools.

Device Information
Device Name: Samsung Galaxy S3 3G - Korea (SKTelecom), SHW-M440S