when walking close to a dessert temple the tnt explodes (single player)

Hello,

so when I walked in the dessert and found a dessert temple in single player the tnt was already exploding I wasn't inside the fresh temple when it happened I was just walking into the direction when it hapenned.

while I wasn't able to see how the explosion was caused, I persume the pressure plates where still from stone but for some reason got activated by a mob like it was a wood pressure plate, or the block state was changed from powered to non powered if thats the case this is probably a duplicate of the bug with the sun flower, could some one verify this to?