Sometimes when setting off TNT the image glitches and it seems as if nothing happened, however, when you place something on whatever the TNT was suppose to blow up, it gets removed. (somewhat of a delay until you trigger the event by clicking on the item)
We're closing all issues only related to 0.6, 0.7 or snapshots of any version.
If you think that this issues applies to MCPE 0.9.5 or later, please comment here!