Pretty self explanatory.
(edit)
I also found out that if you place 2 torches beside the TNT then break one of the torches it goes off.
MC-8287
TNT doesn't always activate when activated with redstone.
Resolved
Duplicate
0
Cody Shearer
(Unassigned)
Unconfirmed
TNT, redstone
Snapshot 13w04a
Retrieved
Duplicate of MC-8184, please use the search function to see if your bug has already been submitted. Currently over 49% of tickets are being closed as duplicate.